

[jsTest] ----
[jsTest] Generating 100000 values with Zipfian distribution
[jsTest] ----



[jsTest] ----
[jsTest] Generated 100000 documents
[jsTest] ----



[jsTest] ----
[jsTest] Inserting 100000 documents into collection plan_stability
[jsTest] ----



[jsTest] ----
[jsTest] Creating indexes on collection plan_stability
[jsTest] ----



[jsTest] ----
[jsTest] Done creating indexes.
[jsTest] ----

{">>>pipelines":[

{">>>pipeline": [{"$match":{"$nor":[{"d_compound":{"$exists":false}},{"d_idx":{"$gte":19}},{"a_compound":{"$all":[13,19,6]}}],"i_compound":{"$in":[2,7]},"z_compound":{"$nin":[5,14]}}},{"$limit":31}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_compound_1_z_compound_1","indexBounds":{"i_compound":["[2.0, 2.0]","[7.0, 7.0]"],"z_compound":["[MinKey, 5.0)","(5.0, 14.0)","(14.0, MaxKey]"]}}}},
    "keys" :      4,
    "docs" :      2,
    "sorts":      0,
    "plans":     15,
    "rows" :      2},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[15,7,14,16,16]}},{"h_idx":{"$exists":false}}],"d_noidx":{"$exists":true}}},{"$project":{"_id":0,"a_compound":1,"z_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     11,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[5,12,10]}},{"c_compound":{"$exists":false}},{"a_idx":{"$ne":9}},{"k_compound":{"$gt":14}}],"h_compound":{"$in":[19,13,6,9]}}},{"$sort":{"a_idx":1}},{"$limit":239},{"$project":{"c_compound":1,"d_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[MinKey, 14.0]","(inf, MaxKey]"]}}}}},
    "keys" :   1501,
    "docs" :   1500,
    "sorts":    561,
    "plans":     17,
    "rows" :    100},

{">>>pipeline": [{"$match":{"$nor":[{"i_idx":{"$exists":false}},{"a_compound":{"$all":[19,18,6,2]}}],"a_compound":{"$elemMatch":{"$exists":true}},"c_compound":{"$exists":true}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     15,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$or":[{"i_idx":{"$nin":[17,4,16]}},{"a_compound":{"$all":[12,9]}},{"k_compound":{"$in":[2,6,12]}}],"a_compound":{"$nin":[5,12,17,9]}}},{"$project":{"_id":0,"a_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[MinKey, 5.0)","(5.0, 9.0)","(9.0, 12.0)","(12.0, 17.0)","(17.0, MaxKey]"]}}}},
    "keys" : 444404,
    "docs" : 100000,
    "sorts":      0,
    "plans":     11,
    "rows" :  75794},

{">>>pipeline": [{"$match":{"$and":[{"d_compound":{"$nin":[18,16,18]}},{"$or":[{"d_idx":{"$nin":[20,6]}},{"a_idx":{"$all":[11,1]}},{"a_compound":{"$exists":false}},{"$and":[{"a_compound":{"$all":[17,19,3]}},{"i_compound":{"$in":[16,9,18,4,11]}},{"a_compound":{"$elemMatch":{"$exists":true}}},{"a_noidx":{"$all":[14,17,1]}}]}]}],"h_compound":{"$exists":true}}},{"$skip":6},{"$project":{"a_idx":1,"d_noidx":1,"k_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_compound_1","indexBounds":{"d_compound":["[MinKey, 16.0)","(16.0, 18.0)","(18.0, MaxKey]"]}}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     13,
    "rows" :  89994},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[18,14,14,16]}},{"z_compound":{"$in":[13,4,14]}}],"d_compound":{"$exists":true},"d_idx":{"$exists":true}}},{"$sort":{"h_idx":1}},{"$limit":145},{"$skip":7},{"$project":{"_id":0,"a_idx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MinKey, MaxKey]"]}}}}}},
    "keys" :    152,
    "docs" :    152,
    "sorts":      0,
    "plans":     14,
    "rows" :    138},

{">>>pipeline": [{"$match":{"$and":[{"d_noidx":{"$exists":true}},{"a_idx":{"$elemMatch":{"$exists":true}}},{"a_idx":{"$elemMatch":{"$nin":[9,8,6,4,4,18]}}},{"$nor":[{"a_compound":{"$all":[9,17,2]}},{"k_compound":{"$exists":false}}]}],"a_noidx":{"$gt":19}}},{"$sort":{"d_idx":-1,"h_idx":1}},{"$limit":19},{"$skip":6},{"$project":{"_id":0,"a_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SKIP","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1_a_compound_1","indexBounds":{"k_compound":["[MinKey, MaxKey]"],"a_compound":["[MinKey, MaxKey]"]}}}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts": 394365,
    "plans":     14,
    "rows" :     13},

{">>>pipeline": [{"$match":{"$nor":[{"h_idx":{"$gt":1}},{"a_compound":{"$nin":[1,20,1]}},{"a_compound":{"$all":[15,14,11,10,17]}}],"i_idx":{"$nin":[14,20]}}},{"$sort":{"c_idx":1}},{"$project":{"a_noidx":1,"h_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MinKey, 1.0]","(inf, MaxKey]"]}}}}},
    "keys" :   2001,
    "docs" :   2000,
    "sorts":  11219,
    "plans":     15,
    "rows" :   1365},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[16,9,12,10]}},{"k_idx":{"$gt":1}}],"a_idx":{"$nin":[10,8]}}},{"$sort":{"d_idx":1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MinKey, 1.0]","(inf, MaxKey]"]}}}},
    "keys" :    201,
    "docs" :    200,
    "sorts":   1260,
    "plans":     13,
    "rows" :    200},

{">>>pipeline": [{"$match":{"$or":[{"i_compound":{"$exists":true}},{"c_compound":{"$gt":13}},{"a_compound":{"$ne":16}},{"i_idx":{"$exists":true}}],"a_compound":{"$elemMatch":{"$exists":true}},"a_idx":{"$in":[1,11,8,5]}}},{"$limit":238}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[1.0, 1.0]","[5.0, 5.0]","[8.0, 8.0]","[11.0, 11.0]"]}}}},
    "keys" :    238,
    "docs" :    238,
    "sorts":      0,
    "plans":     13,
    "rows" :    238},

{">>>pipeline": [{"$match":{"$and":[{"$and":[{"a_compound":{"$elemMatch":{"$exists":true,"$lt":12,"$nin":[14,11]}}},{"a_compound":{"$exists":true}}]},{"a_compound":{"$elemMatch":{"$exists":true}}},{"a_compound":{"$elemMatch":{"$lt":14}}},{"k_compound":{"$exists":true}},{"z_compound":{"$nin":[20,11]}}],"a_idx":{"$exists":true},"c_compound":{"$exists":true}}},{"$limit":95},{"$project":{"_id":0,"a_compound":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_compound_1","indexBounds":{"z_compound":["[MinKey, 11.0)","(11.0, 20.0)","(20.0, MaxKey]"]}}}}},
    "keys" :     95,
    "docs" :     95,
    "sorts":      0,
    "plans":     15,
    "rows" :     95},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$all":[7,13,3]}},{"i_compound":{"$in":[17,18]}},{"a_idx":{"$exists":true}}],"d_compound":{"$exists":true},"k_compound":{"$exists":true}}},{"$limit":218},{"$project":{"_id":0,"a_compound":1,"a_noidx":1,"h_compound":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_compound_1","indexBounds":{"d_compound":["[MinKey, MaxKey]"]}}}}},
    "keys" :    218,
    "docs" :    218,
    "sorts":      0,
    "plans":     13,
    "rows" :    218},

{">>>pipeline": [{"$match":{"$and":[{"d_noidx":{"$lt":5}},{"$or":[{"$and":[{"a_noidx":{"$lt":2}},{"d_noidx":{"$exists":true}},{"a_idx":{"$all":[6,4,6]}},{"c_compound":{"$ne":13}}]},{"a_compound":{"$elemMatch":{"$nin":[14,3]}}}]},{"d_idx":{"$lt":7}}],"a_compound":{"$gt":10}}},{"$limit":165},{"$skip":33}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["(10.0, inf]"]}}}}},
    "keys" :    165,
    "docs" :    165,
    "sorts":      0,
    "plans":     13,
    "rows" :    132},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[4,10,16]}},{"h_idx":{"$lte":9}}],"c_compound":{"$nin":[8,16,7]}}},{"$limit":215},{"$project":{"_id":0,"a_compound":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MinKey, -inf)","(9.0, MaxKey]"]}}}}},
    "keys" :    216,
    "docs" :    215,
    "sorts":      0,
    "plans":     11,
    "rows" :    215},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[1,13,11]}},{"c_idx":{"$exists":false}}],"h_compound":{"$eq":14}}},{"$sort":{"k_idx":-1}},{"$project":{"a_compound":1,"c_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_compound_1","indexBounds":{"h_compound":["[14.0, 14.0]"]}}}}},
    "keys" :   1000,
    "docs" :   1000,
    "sorts":   7908,
    "plans":     11,
    "rows" :   1000},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$exists":false}},{"$and":[{"a_compound":{"$all":[6,2]}},{"i_idx":{"$exists":true}},{"a_compound":{"$all":[14,19]}}]}],"i_compound":{"$in":[2,14,4,7]}}},{"$limit":191},{"$project":{"a_noidx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_compound_1","indexBounds":{"i_compound":["[2.0, 2.0]","[4.0, 4.0]","[7.0, 7.0]","[14.0, 14.0]"]}}}}},
    "keys" :      8,
    "docs" :      4,
    "sorts":      0,
    "plans":     14,
    "rows" :      4},

{">>>pipeline": [{"$match":{"$and":[{"h_idx":{"$ne":14}},{"$nor":[{"a_compound":{"$all":[20,13,2,8]}},{"a_compound":{"$all":[1,1]}},{"k_noidx":{"$in":[14,17]}}]}],"a_idx":{"$elemMatch":{"$ne":5}}}},{"$limit":217},{"$project":{"_id":0,"a_compound":1,"c_compound":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MinKey, 14.0)","(14.0, MaxKey]"]}}}}},
    "keys" :    327,
    "docs" :    327,
    "sorts":      0,
    "plans":     14,
    "rows" :    217},

{">>>pipeline": [{"$match":{"$nor":[{"k_compound":{"$in":[3,1,19,17,1]}},{"i_idx":{"$in":[11,16,15]}},{"a_compound":{"$all":[8,12,13]}}],"a_compound":{"$elemMatch":{"$in":[17,4,17],"$lt":13}}}},{"$sort":{"d_idx":1,"h_idx":-1,"i_idx":-1}},{"$project":{"_id":0,"z_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1_a_compound_1","indexBounds":{"k_compound":["[MinKey, 1.0)","(1.0, 3.0)","(3.0, 17.0)","(17.0, 19.0)","(19.0, MaxKey]"],"a_compound":["[MinKey, 8.0)","(8.0, MaxKey]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1_a_compound_1","indexBounds":{"k_compound":["[MinKey, 1.0)","(1.0, 3.0)","(3.0, 17.0)","(17.0, 19.0)","(19.0, MaxKey]"],"a_compound":["[MinKey, 12.0)","(12.0, MaxKey]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1_a_compound_1","indexBounds":{"k_compound":["[MinKey, 1.0)","(1.0, 3.0)","(3.0, 17.0)","(17.0, 19.0)","(19.0, MaxKey]"],"a_compound":["[MinKey, 13.0)","(13.0, MaxKey]"]}}}]}}}},
    "keys" : 1390928,
    "docs" : 398400,
    "sorts": 183348,
    "plans":     15,
    "rows" :  17064},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$all":[1,12,7,9]}},{"a_idx":{"$all":[19,3,2,7]}},{"a_compound":{"$gt":11}}],"i_compound":{"$gte":1}}},{"$sort":{"k_idx":1}},{"$limit":196},{"$skip":52}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" :    198,
    "docs" :    198,
    "sorts":      0,
    "plans":     13,
    "rows" :    144},

{">>>pipeline": [{"$match":{"$and":[{"c_compound":{"$ne":18}},{"$or":[{"a_compound":{"$elemMatch":{"$exists":true,"$nin":[3,4]}}},{"c_compound":{"$ne":10}},{"a_compound":{"$elemMatch":{"$exists":true,"$nin":[3,20]}}},{"k_compound":{"$exists":false}},{"a_idx":{"$lt":15}}]}],"a_compound":{"$lte":4}}},{"$sort":{"a_idx":-1}},{"$limit":237},{"$skip":14}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}}}},
    "keys" :    240,
    "docs" :    240,
    "sorts":      0,
    "plans":     15,
    "rows" :    223},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$nin":[13,11]}},{"$or":[{"a_idx":{"$all":[1,2,2,12]}},{"c_idx":{"$gt":7}}]}],"c_compound":{"$nin":[14,13,16]}}},{"$sort":{"i_idx":1}},{"$limit":200}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MinKey, MaxKey]"]}}}},
    "keys" :    204,
    "docs" :    204,
    "sorts":      0,
    "plans":     11,
    "rows" :    200},

{">>>pipeline": [{"$match":{"$and":[{"$nor":[{"i_idx":{"$in":[2,11]}},{"a_compound":{"$all":[8,16]}}]},{"k_compound":{"$gt":9}}],"a_idx":{"$gt":16}}},{"$sort":{"c_idx":1,"z_idx":1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1_a_compound_1","indexBounds":{"k_compound":["(9.0, inf]"],"a_compound":["[MinKey, MaxKey]"]}}}},
    "keys" : 466043,
    "docs" :  99000,
    "sorts": 1237677,
    "plans":     13,
    "rows" :  98992},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$all":[15,8,3,9]}},{"k_idx":{"$gte":15}}],"c_compound":{"$gte":1}}},{"$sort":{"z_idx":1}},{"$skip":67},{"$project":{"a_noidx":1,"i_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     12,
    "rows" :  98433},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[10,14,3,20]}},{"d_compound":{"$eq":2}}],"a_compound":{"$ne":15}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_compound_1","indexBounds":{"d_compound":["[MinKey, 2.0)","(2.0, MaxKey]"]}}},
    "keys" :  90001,
    "docs" :  90000,
    "sorts":      0,
    "plans":     14,
    "rows" :  89000},

{">>>pipeline": [{"$match":{"$nor":[{"$nor":[{"a_compound":{"$gt":15}},{"z_compound":{"$nin":[13,15]}},{"a_compound":{"$lt":3}}]},{"a_compound":{"$elemMatch":{"$eq":13,"$exists":true,"$lt":10}}},{"a_noidx":{"$exists":false}}],"k_compound":{"$exists":true}}},{"$skip":5}],
    "winningPlan": {"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"IXSCAN","indexName":"z_compound_1","indexBounds":{"z_compound":["[MinKey, 13.0)","(13.0, 15.0)","(15.0, MaxKey]"]}},{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[-inf, 3.0)","(15.0, inf]"]}}]}}},
    "keys" : 466299,
    "docs" : 100000,
    "sorts":      0,
    "plans":     12,
    "rows" :  99995},

{">>>pipeline": [{"$match":{"$and":[{"a_noidx":{"$nin":[11,15]}},{"$nor":[{"a_compound":{"$all":[1,2,6]}},{"a_compound":{"$gt":9}}]},{"$nor":[{"a_compound":{"$lte":3}},{"a_noidx":{"$exists":false}}]}],"a_compound":{"$elemMatch":{"$gt":5}}}},{"$sort":{"a_idx":1}},{"$project":{"i_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":     15,
    "rows" :      1},

{">>>pipeline": [{"$match":{"$nor":[{"$and":[{"d_idx":{"$exists":true}},{"a_idx":{"$exists":false}},{"d_compound":{"$in":[13,5]}},{"a_compound":{"$all":[12,5,9,15]}}]},{"i_compound":{"$exists":false}}],"z_compound":{"$exists":true}}},{"$limit":251}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_compound_1","indexBounds":{"i_compound":["[MinKey, MaxKey]"]}}}},
    "keys" :    251,
    "docs" :    251,
    "sorts":      0,
    "plans":     14,
    "rows" :    251},

{">>>pipeline": [{"$match":{"$nor":[{"$and":[{"h_compound":{"$in":[6,9]}},{"a_compound":{"$all":[18,14,12]}}]},{"h_idx":{"$in":[18,13,17,20]}},{"k_compound":{"$in":[12,10,3]}}],"a_compound":{"$gt":20},"a_noidx":{"$gt":3},"k_idx":{"$ne":19}}},{"$limit":192},{"$project":{"a_idx":1,"a_noidx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["(20.0, inf]"]}}}}},
    "keys" :    192,
    "docs" :    192,
    "sorts":      0,
    "plans":     16,
    "rows" :    192},

{">>>pipeline": [{"$match":{"$and":[{"i_compound":{"$exists":true}},{"z_compound":{"$nin":[12,16,3,18,2]}}],"d_compound":{"$exists":true}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_compound_1","indexBounds":{"z_compound":["[MinKey, 2.0)","(2.0, 3.0)","(3.0, 12.0)","(12.0, 16.0)","(16.0, 18.0)","(18.0, MaxKey]"]}}},
    "keys" :  50537,
    "docs" :  50535,
    "sorts":      0,
    "plans":      6,
    "rows" :  50535},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$all":[1,12]}},{"$or":[{"a_idx":{"$all":[19,10]}},{"i_idx":{"$gte":19}},{"i_compound":{"$ne":5}}]}]}},{"$limit":44}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[12.0, 12.0]"]}}}},
    "keys" :     88,
    "docs" :     88,
    "sorts":      0,
    "plans":     15,
    "rows" :     44},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[8,16]}},{"a_idx":{"$gt":20}}],"i_noidx":{"$gte":20},"k_compound":{"$ne":9}}},{"$limit":9}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1_a_compound_1","indexBounds":{"k_compound":["[MinKey, 9.0)","(9.0, MaxKey]"],"a_compound":["[MinKey, MaxKey]"]}}}},
    "keys" : 468643,
    "docs" :  99900,
    "sorts":      0,
    "plans":     12,
    "rows" :      1},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[7,19,12,3]}},{"c_idx":{"$eq":6}},{"a_idx":{"$exists":false}}],"a_compound":{"$exists":true}}},{"$sort":{"d_idx":1,"i_idx":1}},{"$skip":54}],
    "winningPlan": {"stage":"SKIP","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts": 1251293,
    "plans":     14,
    "rows" :  99946},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$all":[17,11]}},{"$or":[{"a_compound":{"$all":[8,2]}},{"h_idx":{"$nin":[5,18,9,5]}},{"z_compound":{"$exists":true}}]},{"h_compound":{"$exists":false}}],"a_compound":{"$elemMatch":{"$ne":3}}}},{"$sort":{"i_idx":1}},{"$limit":67}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MinKey, MaxKey]"]}}}},
    "keys" :     67,
    "docs" :     67,
    "sorts":      0,
    "plans":     12,
    "rows" :     67},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$exists":true}},{"a_compound":{"$exists":false}},{"a_compound":{"$gte":1}}],"a_idx":{"$nin":[17,1,20]},"k_compound":{"$exists":true}}},{"$sort":{"c_idx":-1}},{"$limit":171},{"$skip":11},{"$project":{"_id":0,"a_idx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MaxKey, MinKey]"]}}}}}},
    "keys" :    308,
    "docs" :    308,
    "sorts":      0,
    "plans":     13,
    "rows" :    160},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[8,6,5]}},{"z_compound":{"$exists":false}}],"c_compound":{"$lt":5}}},{"$limit":197}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_compound_1","indexBounds":{"z_compound":["[MinKey, MaxKey]"]}}}},
    "keys" :    197,
    "docs" :    197,
    "sorts":      0,
    "plans":     12,
    "rows" :    197},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$all":[10,10,12,19]}},{"k_compound":{"$lt":15}},{"k_compound":{"$eq":8}}],"a_idx":{"$in":[13,9,12]}}},{"$sort":{"d_idx":-1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[19.0, 19.0]"]}}},{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[-inf, 15.0)"]}}]}}},
    "keys" :   2500,
    "docs" :   2500,
    "sorts":   2011,
    "plans":     12,
    "rows" :    300},

{">>>pipeline": [{"$match":{"$and":[{"h_idx":{"$exists":true}},{"$or":[{"a_compound":{"$all":[4,17]}},{"$and":[{"h_idx":{"$in":[7,4]}},{"i_compound":{"$lte":9}},{"h_noidx":{"$gte":8}},{"c_noidx":{"$ne":1}},{"a_idx":{"$all":[7,17,8,14]}},{"h_idx":{"$nin":[13,7]}}]}]},{"$or":[{"a_idx":{"$all":[7,7,11,2]}},{"k_compound":{"$eq":17}}]}],"a_compound":{"$in":[6,20,4]}}},{"$limit":54},{"$project":{"_id":0,"a_idx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[17.0, 17.0]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_compound_1_z_compound_1","indexBounds":{"i_compound":["[-inf, 9.0]"],"z_compound":["[MinKey, MaxKey]"]}}}]}}}},
    "keys" :   1010,
    "docs" :   1079,
    "sorts":      0,
    "plans":     22,
    "rows" :      6},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$ne":9}},{"a_compound":{"$all":[8,19,8,18]}}],"k_compound":{"$in":[16,8,8]}}},{"$limit":167}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[8.0, 8.0]","[16.0, 16.0]"]}}}},
    "keys" :    168,
    "docs" :    167,
    "sorts":      0,
    "plans":     10,
    "rows" :    167},

{">>>pipeline": [{"$match":{"c_compound":{"$nin":[19,8]},"z_compound":{"$nin":[17,15]}}},{"$sort":{"z_idx":1}},{"$project":{"a_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$nin":[12,13,11]}},{"a_compound":{"$all":[14,4,12]}}],"a_compound":{"$elemMatch":{"$nin":[3,4]}}}},{"$sort":{"a_idx":1}},{"$project":{"k_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":     10,
    "rows" :  96996},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$elemMatch":{"$nin":[13,1,18,5]}}},{"a_compound":{"$all":[4,3]}}],"a_idx":{"$in":[10,20,2]}}},{"$limit":43}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[2.0, 2.0]","[10.0, 10.0]","[20.0, 20.0]"]}}}},
    "keys" :     43,
    "docs" :     43,
    "sorts":      0,
    "plans":     10,
    "rows" :     43},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$all":[18,14]}},{"$nor":[{"a_noidx":{"$all":[15,7,7]}},{"z_compound":{"$gt":14}},{"a_noidx":{"$all":[9,15]}}]}],"c_idx":{"$exists":true}}},{"$skip":76}],
    "winningPlan": {"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     11,
    "rows" :  99919},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[4,18,3]}},{"a_compound":{"$exists":false}},{"a_idx":{"$elemMatch":{"$exists":false,"$lt":20}}}],"a_idx":{"$nin":[18,7,19,13]},"c_noidx":{"$nin":[4,2,7,5]},"z_noidx":{"$nin":[3,5]}}},{"$sort":{"z_idx":1}},{"$skip":66}],
    "winningPlan": {"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     12,
    "rows" :  68913},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[5,16,12]}},{"z_idx":{"$in":[12,3]}},{"a_compound":{"$in":[20,3]}}],"a_idx":{"$all":[9,1]},"i_noidx":{"$exists":true}}},{"$sort":{"h_idx":-1}},{"$project":{"z_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     15,
    "rows" :   3759},

{">>>pipeline": [{"$match":{"$or":[{"z_compound":{"$exists":true}},{"z_idx":{"$exists":false}},{"a_compound":{"$all":[11,9]}}],"a_compound":{"$exists":true}}},{"$sort":{"k_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     12,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$all":[18,17]}},{"z_compound":{"$gte":4}}],"a_compound":{"$nin":[10,13,17]},"c_compound":{"$exists":true}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_compound_1_c_compound_1","indexBounds":{"z_compound":["[4.0, inf]"],"c_compound":["[MinKey, MaxKey]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1_i_compound_1","indexBounds":{"a_compound":["[18.0, 18.0]"],"i_compound":["[MinKey, MaxKey]"]}}}]}},
    "keys" :  13111,
    "docs" :  25222,
    "sorts":      0,
    "plans":     13,
    "rows" :  11770},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$nin":[1,18]}},{"a_compound":{"$all":[6,17]}}],"a_compound":{"$nin":[13,10,18]}}},{"$sort":{"h_idx":1,"i_idx":-1}},{"$limit":202}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[MinKey, 10.0)","(10.0, 13.0)","(13.0, 18.0)","(18.0, MaxKey]"]}}}},
    "keys" : 465937,
    "docs" : 100000,
    "sorts": 338584,
    "plans":      7,
    "rows" :    202},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[12,9,2,5,17]}},{"a_idx":{"$lt":1}}],"k_idx":{"$lt":2},"k_noidx":{"$exists":true}}},{"$sort":{"z_idx":-1}},{"$limit":228}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[-inf, 2.0)"]}}}},
    "keys" :    200,
    "docs" :    200,
    "sorts":    561,
    "plans":     13,
    "rows" :    100},

{">>>pipeline": [{"$match":{"$or":[{"i_compound":{"$in":[6,16,16,11]}},{"a_idx":{"$all":[13,8,16,20,17]}},{"c_compound":{"$exists":true}}]}},{"$sort":{"k_idx":1}},{"$limit":124}],
    "winningPlan": {"stage":"SUBPLAN","inputStage":{"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" :    124,
    "docs" :    124,
    "sorts":      0,
    "plans":     11,
    "rows" :    124},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$all":[12,10,20]}},{"a_compound":{"$exists":true}}],"a_idx":{"$nin":[19,14]},"k_compound":{"$nin":[15,15,15]}}},{"$project":{"a_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[MinKey, 15.0)","(15.0, MaxKey]"]}}}},
    "keys" :  99901,
    "docs" :  99900,
    "sorts":      0,
    "plans":     13,
    "rows" :  97900},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$in":[5,17,2]}},{"a_idx":{"$all":[11,20,7]}},{"z_compound":{"$nin":[13,14,10,10,11]}}]}},{"$sort":{"h_idx":1}},{"$limit":240},{"$project":{"c_compound":1,"c_noidx":1}}],
    "winningPlan": {"stage":"SUBPLAN","inputStage":{"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MinKey, MaxKey]"]}}}}}},
    "keys" :    240,
    "docs" :    240,
    "sorts":      0,
    "plans":     11,
    "rows" :    240},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[19,20]}},{"k_compound":{"$exists":false}}],"i_idx":{"$gte":11}}},{"$sort":{"a_idx":1,"i_idx":1}},{"$skip":16},{"$project":{"_id":0,"h_noidx":1,"k_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SKIP","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1_a_compound_1","indexBounds":{"k_compound":["[MinKey, MaxKey]"],"a_compound":["[MinKey, MaxKey]"]}}}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts": 1251144,
    "plans":     12,
    "rows" :  99973},

{">>>pipeline": [{"$match":{"$or":[{"i_compound":{"$exists":true}},{"d_compound":{"$gt":12}},{"a_compound":{"$in":[16,10,18]}},{"k_idx":{"$in":[14,18]}},{"i_idx":{"$lt":19}}],"a_compound":{"$lt":16}}},{"$limit":168},{"$project":{"_id":0,"a_noidx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[-inf, 16.0)"]}}}}},
    "keys" :    168,
    "docs" :    168,
    "sorts":      0,
    "plans":     12,
    "rows" :    168},

{">>>pipeline": [{"$match":{"$or":[{"z_compound":{"$exists":true}},{"a_idx":{"$all":[6,20,6,18]}}]}},{"$sort":{"d_idx":-1}},{"$project":{"_id":0,"k_noidx":1}}],
    "winningPlan": {"stage":"SUBPLAN","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MaxKey, MinKey]"]}}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      9,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"a_compound":{"$nin":[13,8,20]},"d_compound":{"$ne":1},"i_compound":{"$exists":true}}},{"$skip":57}],
    "winningPlan": {"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_compound_1_k_compound_1","indexBounds":{"d_compound":["[MinKey, 1.0)","(1.0, MaxKey]"],"k_compound":["[MinKey, MaxKey]"]}}}},
    "keys" :  90001,
    "docs" :  90000,
    "sorts":      0,
    "plans":      6,
    "rows" :  77874},

{">>>pipeline": [{"$match":{"$nor":[{"h_noidx":{"$gt":6}},{"a_compound":{"$all":[5,11,6,14]}}],"a_compound":{"$lt":2}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[-inf, 2.0)"]}}},
    "keys" :  54506,
    "docs" :  50725,
    "sorts":      0,
    "plans":     12,
    "rows" :   3952},

{">>>pipeline": [{"$match":{"$nor":[{"k_noidx":{"$lt":11}},{"a_compound":{"$all":[8,20,3,6,8]}}],"k_idx":{"$in":[12,8]}}},{"$sort":{"d_idx":1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[8.0, 8.0]","[12.0, 12.0]"]}}}},
    "keys" :    202,
    "docs" :    200,
    "sorts":    561,
    "plans":     12,
    "rows" :    100},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[13,13,9,18,5]}},{"z_compound":{"$in":[8,20]}}],"a_compound":{"$gt":19}}},{"$limit":96}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["(19.0, inf]"]}}}},
    "keys" :     96,
    "docs" :     96,
    "sorts":      0,
    "plans":     14,
    "rows" :     96},

{">>>pipeline": [{"$match":{"$or":[{"$or":[{"$and":[{"a_compound":{"$elemMatch":{"$exists":false,"$gte":8}}},{"a_noidx":{"$elemMatch":{"$in":[11,2]}}},{"a_idx":{"$elemMatch":{"$exists":true,"$gte":7,"$lte":2}}},{"a_idx":{"$eq":8}}]},{"a_compound":{"$elemMatch":{"$exists":false}}}]},{"z_idx":{"$exists":true}}],"a_compound":{"$elemMatch":{"$ne":3}},"z_idx":{"$ne":7}}},{"$sort":{"a_idx":1}},{"$limit":76},{"$project":{"_id":0,"a_noidx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" :     76,
    "docs" :     76,
    "sorts":      0,
    "plans":     12,
    "rows" :     76},

{">>>pipeline": [{"$match":{"$or":[{"$or":[{"k_compound":{"$nin":[14,9,14]}},{"a_compound":{"$all":[7,2,4,19,19]}},{"a_idx":{"$all":[3,8]}}]},{"c_idx":{"$ne":7}},{"k_compound":{"$gte":6}}],"d_compound":{"$gte":4}}},{"$limit":214},{"$project":{"a_compound":1,"z_compound":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_compound_1","indexBounds":{"d_compound":["[4.0, inf]"]}}}}},
    "keys" :    214,
    "docs" :    214,
    "sorts":      0,
    "plans":     11,
    "rows" :    214},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$all":[1,7]}},{"z_compound":{"$eq":1}}],"c_compound":{"$lte":17}}},{"$sort":{"c_idx":1}},{"$limit":253},{"$project":{"_id":0,"a_idx":1,"h_idx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" :   6768,
    "docs" :   6768,
    "sorts":      0,
    "plans":     10,
    "rows" :    253},

{">>>pipeline": [{"$match":{"$or":[{"k_compound":{"$in":[11,7]}},{"a_idx":{"$ne":9}},{"a_compound":{"$all":[5,16,20,8]}}],"a_compound":{"$elemMatch":{"$nin":[3,16]}},"a_noidx":{"$nin":[14,11,17]},"k_idx":{"$nin":[7,15]}}},{"$sort":{"a_idx":1,"c_idx":1}},{"$limit":41},{"$project":{"_id":0,"h_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[MinKey, 3.0)","(3.0, 16.0)","(16.0, MaxKey]"]}}}}},
    "keys" : 442157,
    "docs" : 100000,
    "sorts": 409067,
    "plans":     12,
    "rows" :     41},

{">>>pipeline": [{"$match":{"$nor":[{"i_noidx":{"$gt":4}},{"a_compound":{"$gt":16}},{"a_compound":{"$all":[12,20,11]}}],"d_idx":{"$ne":1}}},{"$sort":{"h_idx":-1}},{"$limit":218}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     12,
    "rows" :      4},

{">>>pipeline": [{"$match":{"$and":[{"$or":[{"i_idx":{"$eq":19}},{"c_compound":{"$gt":8}},{"a_compound":{"$all":[4,16,8,17,19]}},{"a_compound":{"$all":[19,12]}}]},{"$or":[{"z_idx":{"$eq":8}},{"i_compound":{"$in":[19,18,9,7]}},{"a_compound":{"$exists":true}},{"a_idx":{"$in":[19,20,18]}},{"a_compound":{"$all":[10,2,11]}}]}]}},{"$project":{"_id":0,"a_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[12.0, 12.0]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[16.0, 16.0]"]}}},{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[19.0, 19.0]"]}},{"stage":"IXSCAN","indexName":"c_compound_1_d_compound_1","indexBounds":{"c_compound":["(8.0, inf]"],"d_compound":["[MinKey, MaxKey]"]}}]}}},
    "keys" :   2001,
    "docs" :   2001,
    "sorts":      0,
    "plans":     18,
    "rows" :      1},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[15,9,3,8,17]}},{"d_noidx":{"$gt":15}}],"$or":[{"a_idx":{"$all":[3,4,2]}},{"a_compound":{"$lt":16}}]}},{"$sort":{"d_idx":-1}},{"$limit":162},{"$project":{"_id":0,"a_compound":1,"a_noidx":1,"d_noidx":1,"k_noidx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MaxKey, MinKey]"]}}}}},
    "keys" :    162,
    "docs" :    162,
    "sorts":      0,
    "plans":      9,
    "rows" :    162},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$gte":2}},{"a_idx":{"$nin":[19,5,11]}},{"a_idx":{"$all":[4,6]}},{"a_idx":{"$all":[20,16]}}],"c_idx":{"$nin":[12,6,11,11]}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MinKey, 6.0)","(6.0, 11.0)","(11.0, 12.0)","(12.0, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     11,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[12,5,5,1]}},{"h_noidx":{"$nin":[2,19,16,12]}}],"a_compound":{"$elemMatch":{"$gt":9}},"c_compound":{"$exists":true},"c_noidx":{"$lt":14}}},{"$sort":{"c_idx":1}},{"$limit":67},{"$project":{"a_compound":1,"a_idx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" :   1620,
    "docs" :   1620,
    "sorts":      0,
    "plans":     13,
    "rows" :     67},

{">>>pipeline": [{"$match":{"$or":[{"i_idx":{"$nin":[8,14]}},{"a_compound":{"$all":[7,12,8,5,16,6]}}],"d_idx":{"$exists":true}}},{"$sort":{"h_idx":1}},{"$limit":251},{"$project":{"_id":0,"z_idx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" :    251,
    "docs" :    251,
    "sorts":      0,
    "plans":     12,
    "rows" :    251},

{">>>pipeline": [{"$match":{"$or":[{"i_compound":{"$in":[12,6,5]}},{"z_compound":{"$exists":false}},{"c_compound":{"$in":[9,15]}}],"a_compound":{"$nin":[12,15]}}},{"$limit":236}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"IXSCAN","indexName":"i_compound_1","indexBounds":{"i_compound":["[5.0, 5.0]","[6.0, 6.0]","[12.0, 12.0]"]}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_compound_1","indexBounds":{"z_compound":["[null, null]"]}}},{"stage":"IXSCAN","indexName":"c_compound_1","indexBounds":{"c_compound":["[9.0, 9.0]","[15.0, 15.0]"]}}]}}},
    "keys" :      5,
    "docs" :      3,
    "sorts":      0,
    "plans":     12,
    "rows" :      2},

{">>>pipeline": [{"$match":{"$nor":[{"c_compound":{"$exists":false}},{"d_idx":{"$eq":11}}],"$or":[{"d_compound":{"$exists":false}},{"a_compound":{"$elemMatch":{"$in":[20,16,9,16]}}}],"a_compound":{"$exists":true},"k_compound":{"$nin":[10,16]}}},{"$sort":{"d_idx":-1}},{"$limit":49},{"$project":{"a_idx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MaxKey, 11.0)","(11.0, MinKey]"]}}}}},
    "keys" :     49,
    "docs" :     49,
    "sorts":      0,
    "plans":     16,
    "rows" :     49},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$all":[9,2]}},{"a_compound":{"$lte":19}}],"a_compound":{"$in":[10,12,12]}}},{"$sort":{"k_idx":-1}},{"$limit":63}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[10.0, 10.0]","[12.0, 12.0]"]}}}},
    "keys" :   2009,
    "docs" :   2007,
    "sorts":  10322,
    "plans":     12,
    "rows" :     63},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$all":[11,9,1]}},{"$or":[{"i_compound":{"$exists":true}},{"a_compound":{"$all":[15,8,8]}}]},{"$or":[{"d_idx":{"$exists":false}},{"a_idx":{"$exists":false}}]},{"a_idx":{"$all":[15,9,16,13,1,11]}}],"i_compound":{"$lt":16}}},{"$sort":{"i_idx":-1}},{"$project":{"a_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_compound_1","indexBounds":{"i_compound":["[-inf, 16.0)"]}}}}},
    "keys" :     16,
    "docs" :     16,
    "sorts":     60,
    "plans":     12,
    "rows" :     16},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$all":[6,19,14]}},{"a_compound":{"$elemMatch":{"$lte":9}}}],"a_idx":{"$exists":true}}},{"$sort":{"i_idx":-1}},{"$skip":80}],
    "winningPlan": {"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     11,
    "rows" :  99920},

{">>>pipeline": [{"$match":{"$or":[{"d_compound":{"$lte":14}},{"z_compound":{"$lt":20}},{"$and":[{"a_compound":{"$all":[18,10,7]}},{"a_compound":{"$all":[15,12,3]}}]}],"a_idx":{"$elemMatch":{"$lte":11,"$nin":[16,8,12]}},"a_noidx":{"$all":[3,19,9]}}},{"$sort":{"h_idx":-1,"i_idx":1}},{"$limit":36},{"$project":{"_id":0,"a_idx":1,"a_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[-inf, 8.0)","(8.0, 11.0]"]}}}}},
    "keys" : 181862,
    "docs" :  99994,
    "sorts":    779,
    "plans":     11,
    "rows" :     36},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[4,2,14,8]}},{"d_idx":{"$exists":false}}],"a_compound":{"$exists":true}}},{"$skip":66},{"$project":{"_id":0,"a_idx":1,"a_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     13,
    "rows" :  99934},

{">>>pipeline": [{"$match":{"$and":[{"d_idx":{"$in":[2,4]}},{"$or":[{"a_idx":{"$elemMatch":{"$lt":6}}},{"a_idx":{"$gte":13}},{"i_noidx":{"$eq":14}}]},{"$or":[{"a_idx":{"$all":[8,16,15]}},{"z_compound":{"$nin":[5,16]}},{"a_idx":{"$all":[3,10,14]}}]}],"$or":[{"a_idx":{"$ne":8}},{"k_idx":{"$in":[18,4,10]}},{"a_idx":{"$all":[5,1]}}],"a_idx":{"$nin":[14,7,9,7]}}},{"$limit":218},{"$project":{"i_noidx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[2.0, 2.0]","[4.0, 4.0]"]}}}}},
    "keys" :    225,
    "docs" :    225,
    "sorts":      0,
    "plans":     15,
    "rows" :    218},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$ne":18}},{"a_idx":{"$all":[16,2]}},{"c_compound":{"$gt":18}}],"h_noidx":{"$ne":2}}},{"$sort":{"i_idx":1}},{"$limit":180},{"$project":{"a_idx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" :    184,
    "docs" :    184,
    "sorts":      0,
    "plans":     11,
    "rows" :    180},

{">>>pipeline": [{"$match":{"$and":[{"$and":[{"d_compound":{"$nin":[2,11]}},{"a_idx":{"$exists":true}}]},{"a_compound":{"$exists":true}}],"$nor":[{"h_noidx":{"$nin":[9,20]}},{"a_compound":{"$all":[2,5,7]}}],"i_compound":{"$lt":18}}},{"$sort":{"d_idx":-1}},{"$limit":180},{"$project":{"a_noidx":1,"k_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_compound_1","indexBounds":{"i_compound":["[-inf, 18.0)"]}}}}},
    "keys" :     18,
    "docs" :     18,
    "sorts":      1,
    "plans":     16,
    "rows" :      1},

{">>>pipeline": [{"$match":{"$and":[{"c_compound":{"$exists":true}},{"i_compound":{"$nin":[4,8,18,13]}},{"a_idx":{"$elemMatch":{"$nin":[6,18]}}}],"$nor":[{"a_compound":{"$nin":[12,14,2]}},{"a_noidx":{"$elemMatch":{"$exists":false}}}],"a_compound":{"$all":[2,11]}}},{"$sort":{"i_idx":-1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1_i_compound_1","indexBounds":{"a_compound":["[11.0, 11.0]"],"i_compound":["[MinKey, 4.0)","(4.0, 8.0)","(8.0, 13.0)","(13.0, 18.0)","(18.0, MaxKey]"]}}}},
    "keys" :   1005,
    "docs" :   1004,
    "sorts":   2213,
    "plans":     12,
    "rows" :    326},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[15,19,4]}},{"a_idx":{"$exists":false}}],"d_idx":{"$ne":13}}},{"$project":{"h_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MinKey, 13.0)","(13.0, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     10,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$eq":13}},{"$nor":[{"a_idx":{"$eq":4}},{"a_compound":{"$in":[4,12]}}]},{"$and":[{"a_compound":{"$exists":true}},{"h_idx":{"$exists":true}}]}],"h_compound":{"$nin":[14,11,15]}}},{"$sort":{"k_idx":1}},{"$project":{"_id":0,"a_compound":1,"a_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[13.0, 13.0]"]}}}}},
    "keys" :   1000,
    "docs" :   1000,
    "sorts":   7357,
    "plans":     10,
    "rows" :    938},

{">>>pipeline": [{"$match":{"$or":[{"k_compound":{"$lte":11}},{"$or":[{"a_compound":{"$exists":true}},{"a_idx":{"$all":[4,20,5]}}]}],"a_noidx":{"$exists":true},"i_noidx":{"$ne":18}}},{"$sort":{"i_idx":-1}},{"$limit":110},{"$project":{"_id":0,"a_compound":1,"h_compound":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MaxKey, MinKey]"]}}}}},
    "keys" :    110,
    "docs" :    110,
    "sorts":      0,
    "plans":     11,
    "rows" :    110},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$in":[1,20]}},{"a_compound":{"$all":[2,19,4]}},{"a_compound":{"$elemMatch":{"$gt":19}}}],"a_idx":{"$exists":true}}},{"$limit":19}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}}},
    "keys" :     20,
    "docs" :     20,
    "sorts":      0,
    "plans":     10,
    "rows" :     19},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$all":[16,10,15]}},{"a_compound":{"$all":[20,16,5,6]}},{"h_idx":{"$gt":8}}],"a_compound":{"$gt":3}}},{"$project":{"a_compound":1,"d_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["(3.0, inf]"]}}}},
    "keys" : 349857,
    "docs" :  99996,
    "sorts":      0,
    "plans":     11,
    "rows" :  91000},

{">>>pipeline": [{"$match":{"a_compound":{"$lte":9},"d_compound":{"$in":[4,4,2,9]},"d_idx":{"$lt":16}}},{"$sort":{"a_idx":-1}},{"$project":{"_id":0,"a_noidx":1,"c_idx":1,"i_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      6,
    "rows" :  30000},

{">>>pipeline": [{"$match":{"$and":[{"$nor":[{"a_compound":{"$all":[6,12]}},{"k_compound":{"$lte":1}}]},{"a_idx":{"$nin":[8,5]}},{"i_noidx":{"$nin":[6,15]}}],"a_idx":{"$elemMatch":{"$gt":9}},"z_noidx":{"$lte":19}}},{"$limit":104}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["(9.0, inf]"]}}}},
    "keys" :    107,
    "docs" :    107,
    "sorts":      0,
    "plans":     13,
    "rows" :    104},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$all":[8,8]}},{"a_idx":{"$all":[1,15,14,15]}},{"z_compound":{"$lt":13}}],"a_idx":{"$exists":true}}},{"$sort":{"d_idx":-1,"z_idx":1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[15.0, 15.0]"]}}},{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[8.0, 8.0]"]}},{"stage":"IXSCAN","indexName":"z_compound_1_c_compound_1","indexBounds":{"z_compound":["[-inf, 13.0)"],"c_compound":["[MinKey, MaxKey]"]}}]}}},
    "keys" : 111081,
    "docs" : 101000,
    "sorts": 1251293,
    "plans":      9,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$and":[{"i_compound":{"$exists":true}},{"a_idx":{"$elemMatch":{"$in":[18,9,17]}}}],"$or":[{"$and":[{"z_idx":{"$gt":7}},{"a_idx":{"$eq":2}},{"a_idx":{"$all":[7,18]}},{"a_compound":{"$all":[14,9,14]}}]},{"i_idx":{"$lt":19}},{"a_compound":{"$all":[15,3]}},{"a_compound":{"$all":[7,4]}},{"z_idx":{"$exists":true}}]}},{"$limit":157},{"$project":{"_id":0,"c_compound":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[9.0, 9.0]","[17.0, 17.0]","[18.0, 18.0]"]}}}}},
    "keys" :    157,
    "docs" :    157,
    "sorts":      0,
    "plans":     12,
    "rows" :    157},

{">>>pipeline": [{"$match":{"$and":[{"h_idx":{"$exists":true}},{"i_compound":{"$eq":5}},{"$nor":[{"a_compound":{"$all":[17,10,20,15]}},{"a_compound":{"$nin":[5,9]}},{"a_idx":{"$gte":8}}]}],"h_noidx":{"$exists":true}}},{"$limit":48},{"$project":{"_id":0,"a_compound":1,"h_noidx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_compound_1","indexBounds":{"i_compound":["[5.0, 5.0]"]}}}}},
    "keys" :      1,
    "docs" :      1,
    "sorts":      0,
    "plans":     16,
    "rows" :      1},

{">>>pipeline": [{"$match":{"$nor":[{"k_compound":{"$exists":false}},{"a_compound":{"$gte":8}},{"a_noidx":{"$elemMatch":{"$exists":false}}}],"$or":[{"z_idx":{"$exists":true}},{"a_compound":{"$elemMatch":{"$gt":11}}},{"a_compound":{"$elemMatch":{"$exists":true}}}],"d_compound":{"$nin":[18,2]}}},{"$limit":236}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1_a_compound_1","indexBounds":{"k_compound":["[MinKey, MaxKey]"],"a_compound":["[MinKey, MaxKey]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MinKey, MaxKey]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1_i_compound_1","indexBounds":{"a_compound":["(11.0, inf]"],"i_compound":["[MinKey, MaxKey]"]}}}]}}},
    "keys" : 845941,
    "docs" : 399988,
    "sorts":      0,
    "plans":     15,
    "rows" :      7},

{">>>pipeline": [{"$match":{"$and":[{"c_idx":{"$nin":[20,3,7,17,6]}},{"i_compound":{"$nin":[13,20,6]}}],"$nor":[{"k_idx":{"$exists":false}},{"a_compound":{"$all":[6,16,18]}}],"a_noidx":{"$in":[19,15]}}},{"$sort":{"i_idx":1}},{"$limit":172}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MinKey, MaxKey]"]}}}},
    "keys" :   8520,
    "docs" :   8520,
    "sorts":      0,
    "plans":     13,
    "rows" :    172},

{">>>pipeline": [{"$match":{"$and":[{"d_noidx":{"$gt":1}},{"a_idx":{"$elemMatch":{"$lte":16}}},{"a_compound":{"$in":[16,3]}},{"c_compound":{"$nin":[20,11,15,9]}},{"$nor":[{"a_idx":{"$nin":[8,16,3]}},{"a_compound":{"$all":[20,6,2]}}]}],"a_noidx":{"$gt":14}}},{"$limit":73},{"$project":{"_id":0,"i_noidx":1,"k_idx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[3.0, 3.0]","[8.0, 8.0]","[16.0, 16.0]"]}}}}},
    "keys" :     92,
    "docs" :     92,
    "sorts":      0,
    "plans":     14,
    "rows" :     73},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$all":[10,18,12]}},{"i_compound":{"$exists":true}}],"k_idx":{"$exists":true},"z_compound":{"$exists":true}}},{"$sort":{"a_idx":1,"d_idx":1,"h_idx":-1,"i_idx":-1,"z_idx":-1}},{"$project":{"a_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_compound_1","indexBounds":{"z_compound":["[MinKey, MaxKey]"]}}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts": 1251293,
    "plans":     12,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[10,3,13,19]}},{"h_idx":{"$in":[12,12]}}],"i_idx":{"$in":[6,19]}}},{"$project":{"a_compound":1,"z_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[6.0, 6.0]","[19.0, 19.0]"]}}}},
    "keys" :      4,
    "docs" :      2,
    "sorts":      0,
    "plans":     12,
    "rows" :      2},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$all":[1,1,6,3]}},{"a_compound":{"$exists":true}}],"a_compound":{"$all":[13,2,3]}}},{"$sort":{"c_idx":1}},{"$limit":169},{"$project":{"d_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[13.0, 13.0]"]}}}}},
    "keys" :   1000,
    "docs" :   1000,
    "sorts":   2096,
    "plans":     16,
    "rows" :    169},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[13,19,7]}},{"a_idx":{"$in":[12,20]}}],"a_compound":{"$elemMatch":{"$exists":true}},"k_compound":{"$exists":true}}},{"$limit":122},{"$project":{"_id":0,"a_noidx":1,"i_noidx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[MinKey, MaxKey]"]}}}}},
    "keys" :    122,
    "docs" :    122,
    "sorts":      0,
    "plans":     15,
    "rows" :    122},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$elemMatch":{"$exists":true,"$nin":[5,6]}}},{"$and":[{"a_noidx":{"$exists":false}},{"a_idx":{"$all":[1,19,6]}},{"a_compound":{"$exists":true}}]}],"a_compound":{"$all":[15,5]}}},{"$limit":39}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[15.0, 15.0]"]}}}},
    "keys" :     39,
    "docs" :     39,
    "sorts":      0,
    "plans":     15,
    "rows" :     39},

{">>>pipeline": [{"$match":{"$or":[{"k_compound":{"$gt":8}},{"a_compound":{"$all":[13,3,4]}},{"a_idx":{"$elemMatch":{"$lte":3}}}],"a_idx":{"$elemMatch":{"$eq":19}}}},{"$sort":{"z_idx":1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[19.0, 19.0]"]}}}},
    "keys" :   1000,
    "docs" :   1000,
    "sorts":   7908,
    "plans":     11,
    "rows" :   1000},

{">>>pipeline": [{"$match":{"$or":[{"$or":[{"a_compound":{"$lte":18}},{"a_idx":{"$all":[1,5,13,19]}}]},{"$and":[{"h_noidx":{"$eq":2}},{"i_noidx":{"$lt":16}},{"a_compound":{"$gt":11}}]}],"a_idx":{"$in":[15,3,14]},"i_compound":{"$gt":18}}},{"$sort":{"a_idx":1}},{"$limit":232}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}}},
    "keys" :   1251,
    "docs" :   1251,
    "sorts":      0,
    "plans":     14,
    "rows" :    232},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$all":[2,18]}},{"a_compound":{"$all":[15,14,8,14]}},{"$or":[{"h_idx":{"$nin":[1,13]}},{"$and":[{"k_compound":{"$exists":true}},{"z_noidx":{"$exists":false}}]},{"a_compound":{"$all":[14,3]}}]}],"a_compound":{"$gt":4}}},{"$limit":228}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["(4.0, inf]"]}}}},
    "keys" :    232,
    "docs" :    232,
    "sorts":      0,
    "plans":     11,
    "rows" :    228},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$gt":14}},{"i_compound":{"$lte":17}}],"a_compound":{"$eq":6},"k_compound":{"$ne":5}}},{"$sort":{"h_idx":1,"i_idx":1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[6.0, 6.0]"]}}}},
    "keys" :  10873,
    "docs" :  10873,
    "sorts": 111916,
    "plans":     13,
    "rows" :  10872},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$exists":false}},{"a_idx":{"$nin":[11,15]}},{"a_idx":{"$elemMatch":{"$in":[12,16]}}}],"$or":[{"i_idx":{"$nin":[6,20,14]}},{"i_compound":{"$nin":[17,17,4]}},{"c_compound":{"$in":[16,5]}}]}},{"$sort":{"d_idx":-1}},{"$project":{"_id":0,"c_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[11.0, 11.0]","[15.0, 15.0]"]}}}}},
    "keys" :   2006,
    "docs" :   2004,
    "sorts":  17240,
    "plans":     10,
    "rows" :   2004},

{">>>pipeline": [{"$match":{"$nor":[{"d_compound":{"$lt":7}},{"i_idx":{"$eq":5}},{"$and":[{"a_compound":{"$all":[16,20]}},{"a_compound":{"$nin":[10,10,5,10]}}]}],"k_compound":{"$exists":true}}},{"$limit":197},{"$project":{"a_noidx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_compound_1","indexBounds":{"d_compound":["[MinKey, -inf)","[7.0, MaxKey]"]}}}}},
    "keys" :    198,
    "docs" :    197,
    "sorts":      0,
    "plans":     15,
    "rows" :    197},

{">>>pipeline": [{"$match":{"$and":[{"k_compound":{"$gte":2}},{"a_idx":{"$all":[2,2,15]}},{"$or":[{"k_idx":{"$lte":11}},{"$or":[{"a_compound":{"$exists":true}},{"a_idx":{"$all":[8,12,9,10]}},{"d_compound":{"$exists":true}}]},{"a_idx":{"$exists":true}}]},{"$or":[{"a_noidx":{"$lt":6}},{"i_compound":{"$exists":true}}]}]}},{"$limit":19},{"$project":{"_id":0,"a_idx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[15.0, 15.0]"]}}}}},
    "keys" :     59,
    "docs" :     59,
    "sorts":      0,
    "plans":     16,
    "rows" :     19},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$all":[10,7]}},{"a_compound":{"$nin":[12,3,6]}}],"k_idx":{"$eq":14}}},{"$sort":{"a_idx":1,"z_idx":-1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[14.0, 14.0]"]}}}},
    "keys" :    100,
    "docs" :    100,
    "sorts":    443,
    "plans":     10,
    "rows" :     82},

{">>>pipeline": [{"$match":{"$nor":[{"k_compound":{"$gt":13}},{"a_compound":{"$all":[13,14]}},{"h_idx":{"$gte":12}}],"h_idx":{"$lte":11}}},{"$sort":{"z_idx":1}},{"$project":{"_id":0,"a_compound":1,"a_noidx":1,"d_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[MinKey, 13.0]","(inf, MaxKey]"]}}}}},
    "keys" :   1401,
    "docs" :   1400,
    "sorts":   9708,
    "plans":     13,
    "rows" :   1200},

{">>>pipeline": [{"$match":{"$or":[{"z_compound":{"$gte":14}},{"k_compound":{"$nin":[8,17,2]}},{"h_idx":{"$exists":true}},{"i_compound":{"$exists":false}}],"a_compound":{"$elemMatch":{"$lt":6}}}},{"$sort":{"d_idx":-1,"z_idx":-1}},{"$project":{"_id":0,"a_idx":1,"c_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[-inf, 6.0)"]}}}}},
    "keys" : 148706,
    "docs" :  99448,
    "sorts": 1243835,
    "plans":     12,
    "rows" :  99448},

{">>>pipeline": [{"$match":{"$nor":[{"z_compound":{"$gte":9}},{"c_noidx":{"$in":[5,17,20]}},{"$or":[{"a_compound":{"$all":[11,2,11,7]}},{"a_noidx":{"$elemMatch":{"$in":[15,4,13]}}}]},{"c_noidx":{"$in":[12,3,14,13]}}],"a_compound":{"$exists":true},"i_compound":{"$exists":true}}},{"$project":{"a_noidx":1,"k_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[MinKey, MaxKey]"]}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":     14,
    "rows" :  81024},

{">>>pipeline": [{"$match":{"$nor":[{"$or":[{"c_idx":{"$eq":17}},{"a_noidx":{"$eq":14}}]},{"a_compound":{"$in":[3,3]}},{"c_idx":{"$exists":false}},{"$nor":[{"a_idx":{"$all":[16,13,1]}},{"a_compound":{"$all":[8,14]}},{"a_idx":{"$elemMatch":{"$exists":true}}}]}],"i_idx":{"$lt":16}}},{"$limit":144},{"$project":{"d_noidx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[-inf, 16.0)"]}}}}},
    "keys" :     16,
    "docs" :     16,
    "sorts":      0,
    "plans":     13,
    "rows" :     10},

{">>>pipeline": [{"$match":{"$and":[{"a_idx":{"$nin":[9,12]}},{"a_compound":{"$lte":18}}],"a_compound":{"$nin":[18,11]}}},{"$sort":{"i_idx":-1}},{"$project":{"a_idx":1,"a_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      6,
    "rows" :  86984},

{">>>pipeline": [{"$match":{"$and":[{"h_compound":{"$exists":true}},{"$nor":[{"a_compound":{"$all":[17,10,16]}},{"c_idx":{"$gt":9}},{"a_compound":{"$elemMatch":{"$exists":false,"$lte":2}}},{"c_idx":{"$nin":[1,18,6]}}]}],"a_compound":{"$exists":true},"k_compound":{"$in":[5,14,12,16]}}},{"$sort":{"d_idx":-1}},{"$project":{"_id":0,"a_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[5.0, 5.0]","[12.0, 12.0]","[14.0, 14.0]","[16.0, 16.0]"]}}}}},
    "keys" :    404,
    "docs" :    400,
    "sorts":   2797,
    "plans":     17,
    "rows" :    400},

{">>>pipeline": [{"$match":{"$nor":[{"i_compound":{"$in":[8,14,2]}},{"$or":[{"a_compound":{"$all":[14,15,7,17]}},{"a_idx":{"$elemMatch":{"$exists":false}}},{"a_noidx":{"$elemMatch":{"$gte":12,"$lte":5}}}]}],"a_compound":{"$elemMatch":{"$in":[3,9,18]}}}},{"$sort":{"h_idx":1}},{"$limit":74},{"$skip":30},{"$project":{"a_compound":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MinKey, MaxKey]"]}}}}}},
    "keys" :    328,
    "docs" :    328,
    "sorts":      0,
    "plans":     15,
    "rows" :     44},

{">>>pipeline": [{"$match":{"$or":[{"d_idx":{"$in":[13,1]}},{"a_compound":{"$lte":15}},{"a_idx":{"$all":[5,10,8]}},{"d_compound":{"$gt":16}}],"k_idx":{"$in":[2,14,20]}}},{"$sort":{"d_idx":-1}},{"$limit":32}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[2.0, 2.0]","[14.0, 14.0]","[20.0, 20.0]"]}}}},
    "keys" :    303,
    "docs" :    300,
    "sorts":   1340,
    "plans":     12,
    "rows" :     32},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$exists":false}},{"$and":[{"a_compound":{"$all":[10,8,3]}},{"k_compound":{"$ne":13}}]}],"a_idx":{"$all":[2,3]}}},{"$limit":187},{"$project":{"a_idx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[3.0, 3.0]"]}}}}},
    "keys" :    956,
    "docs" :    956,
    "sorts":      0,
    "plans":     15,
    "rows" :    187},

{">>>pipeline": [{"$match":{"$or":[{"c_compound":{"$in":[15,17,1,8]}},{"a_compound":{"$all":[4,6,4]}}],"a_idx":{"$all":[4,18]}}},{"$project":{"_id":0,"a_noidx":1,"i_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[18.0, 18.0]"]}}}},
    "keys" :   1000,
    "docs" :   1000,
    "sorts":      0,
    "plans":     12,
    "rows" :     90},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$elemMatch":{"$gt":1}}},{"$or":[{"a_idx":{"$all":[16,11,2,1]}},{"a_compound":{"$exists":true}}]}],"a_noidx":{"$nin":[1,18]}}},{"$sort":{"d_idx":-1}},{"$limit":113}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MaxKey, MinKey]"]}}}},
    "keys" :    178,
    "docs" :    178,
    "sorts":      0,
    "plans":     11,
    "rows" :    113},

{">>>pipeline": [{"$match":{"$or":[{"i_compound":{"$ne":18}},{"k_compound":{"$nin":[10,4,5]}}],"a_compound":{"$all":[2,8]}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[8.0, 8.0]"]}}},
    "keys" :  10081,
    "docs" :  10081,
    "sorts":      0,
    "plans":     13,
    "rows" :   3145},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$all":[9,11]}},{"a_idx":{"$elemMatch":{"$exists":true}}},{"$and":[{"a_compound":{"$lt":17}},{"a_noidx":{"$all":[15,4]}},{"h_noidx":{"$exists":false}}]}],"a_compound":{"$in":[2,11]},"a_idx":{"$elemMatch":{"$gte":20}}}},{"$sort":{"d_idx":1,"k_idx":1}},{"$limit":181},{"$project":{"_id":0,"a_idx":1,"k_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[-inf, 17.0)"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1_i_compound_1","indexBounds":{"a_compound":["[9.0, 9.0]"],"i_compound":["[MinKey, MaxKey]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}}]}}}},
    "keys" : 675895,
    "docs" : 310013,
    "sorts": 244605,
    "plans":     12,
    "rows" :    181},

{">>>pipeline": [{"$match":{"a_compound":{"$nin":[7,7,6]},"c_compound":{"$nin":[18,13,18]}}},{"$sort":{"h_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :  79007},

{">>>pipeline": [{"$match":{"a_compound":{"$exists":true},"c_compound":{"$exists":true},"h_compound":{"$exists":true}}},{"$sort":{"c_idx":-1}},{"$limit":226}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MaxKey, MinKey]"]}}}},
    "keys" :    226,
    "docs" :    226,
    "sorts":      0,
    "plans":      6,
    "rows" :    226},

{">>>pipeline": [{"$match":{"$nor":[{"h_idx":{"$ne":10}},{"d_compound":{"$eq":2}},{"$nor":[{"a_compound":{"$gte":3}},{"a_compound":{"$ne":8}},{"a_idx":{"$lte":10}},{"a_compound":{"$gt":13}}]}],"c_noidx":{"$ne":15}}},{"$sort":{"a_idx":1,"c_idx":-1,"k_idx":-1,"z_idx":1}},{"$limit":109}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[10.0, 10.0]"]}}}},
    "keys" :   1000,
    "docs" :   1000,
    "sorts":   5691,
    "plans":     11,
    "rows" :    109},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[2,15,3]}},{"h_noidx":{"$eq":9}},{"d_noidx":{"$exists":false}}],"d_compound":{"$exists":true}}},{"$sort":{"a_idx":1}},{"$limit":160}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}}},
    "keys" :    160,
    "docs" :    160,
    "sorts":      0,
    "plans":     11,
    "rows" :    160},

{">>>pipeline": [{"$match":{"i_compound":{"$nin":[2,8]},"z_compound":{"$nin":[18,5]}}},{"$sort":{"d_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :  97161},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$all":[4,2,16,10,15]}},{"a_idx":{"$all":[16,8,20,13,20]}},{"a_idx":{"$eq":5}}],"k_compound":{"$exists":true}}},{"$sort":{"c_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     13,
    "rows" :  12528},

{">>>pipeline": [{"$match":{"$and":[{"c_compound":{"$in":[1,6]}},{"k_compound":{"$ne":10}}],"$nor":[{"i_noidx":{"$lt":12}},{"$or":[{"k_idx":{"$in":[16,11]}},{"a_compound":{"$eq":1}},{"a_compound":{"$in":[10,9]}},{"a_compound":{"$all":[20,15,8]}}]}]}},{"$project":{"a_idx":1,"z_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[MinKey, 1.0)","(1.0, MaxKey]"]}}}},
    "keys" : 424436,
    "docs" : 100000,
    "sorts":      0,
    "plans":     19,
    "rows" :  48569},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$nin":[6,11]}},{"a_compound":{"$in":[5,19,14]}},{"a_compound":{"$all":[4,14,15]}}],"c_compound":{"$lt":15}}},{"$sort":{"c_idx":1,"k_idx":1}},{"$limit":113}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_compound_1","indexBounds":{"c_compound":["[-inf, 15.0)"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts": 507177,
    "plans":     11,
    "rows" :    113},

{">>>pipeline": [{"$match":{"$and":[{"h_idx":{"$nin":[5,12]}},{"a_compound":{"$all":[4,14,4]}},{"$or":[{"a_idx":{"$all":[1,5]}},{"a_compound":{"$elemMatch":{"$in":[19,20,14]}}}]}]}},{"$sort":{"a_idx":1,"z_idx":-1}},{"$limit":158},{"$project":{"a_compound":1,"h_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[14.0, 14.0]"]}}}}},
    "keys" :   1000,
    "docs" :   1000,
    "sorts":   6063,
    "plans":     12,
    "rows" :    158},

{">>>pipeline": [{"$match":{"$and":[{"i_compound":{"$nin":[8,18,13]}},{"a_compound":{"$exists":true}},{"$or":[{"z_noidx":{"$gt":1}},{"a_noidx":{"$elemMatch":{"$exists":true,"$in":[20,20],"$nin":[2,10]}}},{"a_compound":{"$exists":true}}]},{"$nor":[{"z_noidx":{"$gte":9}},{"a_compound":{"$all":[8,16,12,3,17]}},{"a_compound":{"$in":[5,15,12]}}]}]}},{"$sort":{"d_idx":1,"z_idx":1}},{"$limit":86}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1_i_compound_1","indexBounds":{"a_compound":["[MinKey, MaxKey]"],"i_compound":["[MinKey, 8.0)","(8.0, 13.0)","(13.0, 18.0)","(18.0, MaxKey]"]}}}},
    "keys" : 468941,
    "docs" :  99997,
    "sorts": 471708,
    "plans":     16,
    "rows" :     86},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$elemMatch":{"$exists":false}}},{"$and":[{"a_compound":{"$exists":true}},{"d_idx":{"$exists":true}},{"c_compound":{"$lte":18}}]}],"d_idx":{"$lte":8}}},{"$limit":135}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[-inf, 8.0]"]}}}},
    "keys" :    135,
    "docs" :    135,
    "sorts":      0,
    "plans":      6,
    "rows" :    135},

{">>>pipeline": [{"$match":{"$nor":[{"i_compound":{"$nin":[20,10,2,14]}},{"a_compound":{"$in":[8,18,4]}}],"c_noidx":{"$nin":[2,15,17]},"k_compound":{"$nin":[12,15]}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_compound_1","indexBounds":{"i_compound":["[2.0, 2.0]","[10.0, 10.0]","[14.0, 14.0]","[20.0, 20.0]"]}}},
    "keys" :      8,
    "docs" :      4,
    "sorts":      0,
    "plans":      6,
    "rows" :      3},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[18,14,13,1,1]}},{"c_noidx":{"$in":[9,13,5]}}],"a_compound":{"$lte":9}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[-inf, 9.0]"]}}},
    "keys" : 189930,
    "docs" : 100000,
    "sorts":      0,
    "plans":     12,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[8,6,16]}},{"a_compound":{"$nin":[16,3,19]}},{"k_compound":{"$nin":[20,3]}}],"i_noidx":{"$lte":3}}},{"$sort":{"a_idx":1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1_a_compound_1","indexBounds":{"k_compound":["[3.0, 3.0]","[20.0, 20.0]"],"a_compound":["[3.0, 3.0]","[16.0, 16.0]","[19.0, 19.0]"]}}}},
    "keys" :    129,
    "docs" :    124,
    "sorts":      1,
    "plans":     15,
    "rows" :      1},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$all":[5,15,13]}},{"k_compound":{"$exists":true}}],"a_compound":{"$all":[6,1]}}},{"$sort":{"i_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     15,
    "rows" :   3928},

{">>>pipeline": [{"$match":{"$and":[{"$or":[{"a_idx":{"$elemMatch":{"$gte":9,"$ne":1}}},{"k_compound":{"$in":[8,13,11,17]}}]},{"z_compound":{"$nin":[20,18,19]}},{"$or":[{"c_idx":{"$eq":16}},{"a_compound":{"$elemMatch":{"$exists":true,"$gt":7,"$nin":[19,13,17]}}},{"a_compound":{"$all":[19,12]}},{"h_idx":{"$lt":2}}]}],"$or":[{"c_compound":{"$nin":[15,7]}},{"a_noidx":{"$exists":true}}]}},{"$sort":{"z_idx":-1}},{"$limit":132}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MaxKey, MinKey]"]}}}},
    "keys" :    132,
    "docs" :    132,
    "sorts":      0,
    "plans":     14,
    "rows" :    132},

{">>>pipeline": [{"$match":{"$nor":[{"d_idx":{"$eq":14}},{"a_compound":{"$nin":[9,11,2]}},{"$and":[{"k_compound":{"$in":[5,10,19]}},{"a_compound":{"$ne":6}}]}],"a_noidx":{"$in":[1,10,13]}}},{"$sort":{"c_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      8,
    "rows" :  12035},

{">>>pipeline": [{"$match":{"$or":[{"i_compound":{"$exists":false}},{"k_idx":{"$exists":true}},{"$or":[{"d_compound":{"$exists":true}},{"a_idx":{"$all":[9,5,10]}}]}],"a_idx":{"$exists":true}}},{"$sort":{"c_idx":1,"d_idx":1,"h_idx":-1}},{"$limit":186}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts": 622575,
    "plans":     11,
    "rows" :    186},

{">>>pipeline": [{"$match":{"$nor":[{"a_noidx":{"$exists":false}},{"k_compound":{"$lte":1}},{"a_compound":{"$all":[14,10,20,12,20]}}],"a_compound":{"$all":[9,19,19]},"h_compound":{"$gt":16}}},{"$sort":{"i_idx":-1}},{"$project":{"_id":0,"a_noidx":1,"h_noidx":1,"z_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[19.0, 19.0]"]}}}}},
    "keys" :   1000,
    "docs" :   1000,
    "sorts":   7908,
    "plans":     18,
    "rows" :   1000},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$elemMatch":{"$nin":[19,13]}}},{"a_idx":{"$all":[5,18]}},{"i_compound":{"$gt":11}},{"d_idx":{"$gt":18}}],"h_idx":{"$nin":[18,11,19]}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MinKey, 11.0)","(11.0, 18.0)","(18.0, 19.0)","(19.0, MaxKey]"]}}},
    "keys" :  97003,
    "docs" :  97000,
    "sorts":      0,
    "plans":     11,
    "rows" :  97000},

{">>>pipeline": [{"$match":{"$or":[{"$or":[{"a_compound":{"$elemMatch":{"$lte":2}}},{"$and":[{"$nor":[{"a_noidx":{"$elemMatch":{"$exists":false}}},{"z_noidx":{"$exists":true}}]},{"a_idx":{"$elemMatch":{"$gte":10}}}]},{"a_idx":{"$elemMatch":{"$exists":true}}},{"i_compound":{"$exists":false}}]},{"k_compound":{"$gte":20}}],"a_compound":{"$eq":2},"d_noidx":{"$eq":8}}},{"$sort":{"d_idx":1,"z_idx":1}},{"$limit":86},{"$skip":5}],
    "winningPlan": {"stage":"SKIP","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_compound_1","indexBounds":{"i_compound":["[null, null]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[10.0, inf]"]}}},{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[20.0, inf]"]}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[-inf, 2.0]"]}}}]}}}},
    "keys" : 939250,
    "docs" : 379312,
    "sorts":  17105,
    "plans":     12,
    "rows" :     81},

{">>>pipeline": [{"$match":{"$or":[{"c_compound":{"$nin":[16,2,9,15,16]}},{"$and":[{"c_compound":{"$exists":false}},{"a_idx":{"$exists":false}},{"a_idx":{"$all":[14,7,7,4]}}]}],"a_compound":{"$gt":15}}},{"$project":{"_id":0,"a_noidx":1,"c_idx":1,"z_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["(15.0, inf]"]}}}},
    "keys" : 273000,
    "docs" :  99984,
    "sorts":      0,
    "plans":     12,
    "rows" :  99984},

{">>>pipeline": [{"$match":{"$nor":[{"$nor":[{"i_compound":{"$exists":true}},{"a_idx":{"$exists":true}},{"a_noidx":{"$all":[8,16,14]}},{"a_idx":{"$exists":false}}]},{"$and":[{"d_idx":{"$nin":[8,3,14]}},{"a_compound":{"$all":[6,3,11,1]}},{"d_idx":{"$nin":[3,9]}}]}],"c_noidx":{"$in":[1,2]},"k_compound":{"$gt":17}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["(17.0, inf]"]}}},
    "keys" :  98200,
    "docs" :  98200,
    "sorts":      0,
    "plans":     12,
    "rows" :  98200},

{">>>pipeline": [{"$match":{"$and":[{"a_idx":{"$nin":[13,2,10,9]}},{"a_noidx":{"$lte":3}}],"a_compound":{"$nin":[6,19,1]},"a_idx":{"$exists":true}}},{"$limit":151},{"$project":{"a_noidx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, 2.0)","(2.0, 9.0)","(9.0, 10.0)","(10.0, 13.0)","(13.0, MaxKey]"]}}}}},
    "keys" :    589,
    "docs" :    589,
    "sorts":      0,
    "plans":      4,
    "rows" :    151},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$all":[15,1,15,3]}},{"k_compound":{"$nin":[19,15]}},{"a_compound":{"$all":[7,9]}}],"k_compound":{"$lte":10}}},{"$limit":209}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[-inf, 10.0]"]}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[15.0, 15.0]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[7.0, 7.0]"]}}}]}}},
    "keys" :    209,
    "docs" :    209,
    "sorts":      0,
    "plans":     11,
    "rows" :    209},

{">>>pipeline": [{"$match":{"$nor":[{"d_idx":{"$eq":8}},{"a_idx":{"$eq":2}}],"a_compound":{"$nin":[1,1,10]},"d_compound":{"$lte":4}}},{"$limit":146},{"$project":{"_id":0,"a_idx":1,"i_compound":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MinKey, 8.0)","(8.0, MaxKey]"]}}}}},
    "keys" :    554,
    "docs" :    554,
    "sorts":      0,
    "plans":      6,
    "rows" :    146},

{">>>pipeline": [{"$match":{"$nor":[{"k_compound":{"$gte":19}},{"h_noidx":{"$ne":7}},{"a_compound":{"$all":[6,16,1]}}],"i_compound":{"$lte":18}}},{"$limit":40}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_compound_1","indexBounds":{"i_compound":["[-inf, 18.0]"]}}}},
    "keys" :     19,
    "docs" :     19,
    "sorts":      0,
    "plans":     14,
    "rows" :      1},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$exists":true}},{"a_idx":{"$all":[11,3,7]}}],"a_idx":{"$exists":true}}},{"$sort":{"a_idx":1,"h_idx":-1}},{"$project":{"a_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts": 1251293,
    "plans":      9,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$or":[{"k_compound":{"$gt":15}},{"a_compound":{"$ne":8}},{"a_idx":{"$all":[17,17,8]}}]}},{"$sort":{"h_idx":-1}},{"$limit":242},{"$project":{"_id":0,"c_idx":1}}],
    "winningPlan": {"stage":"SUBPLAN","inputStage":{"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MaxKey, MinKey]"]}}}}}},
    "keys" :    242,
    "docs" :    242,
    "sorts":      0,
    "plans":     11,
    "rows" :    242},

{">>>pipeline": [{"$match":{"$and":[{"$nor":[{"$and":[{"a_idx":{"$elemMatch":{"$exists":false}}},{"c_compound":{"$nin":[7,5]}}]},{"c_compound":{"$in":[19,14]}}]},{"$or":[{"a_idx":{"$all":[14,5,5]}},{"a_idx":{"$exists":true}},{"c_compound":{"$in":[16,16]}}]},{"c_noidx":{"$exists":true}}],"$nor":[{"c_compound":{"$eq":5}},{"h_compound":{"$lt":2}},{"$and":[{"a_noidx":{"$lt":19}},{"a_compound":{"$elemMatch":{"$exists":false,"$in":[14,16]}}}]},{"i_compound":{"$lt":2}}],"$or":[{"i_idx":{"$exists":false}},{"a_compound":{"$all":[12,8,14]}},{"a_idx":{"$elemMatch":{"$eq":9}}},{"z_compound":{"$nin":[12,20,19,11,3]}}]}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[null, null]"]}}},{"stage":"IXSCAN","indexName":"z_compound_1","indexBounds":{"z_compound":["[MinKey, 3.0)","(3.0, 11.0)","(11.0, 12.0)","(12.0, 19.0)","(19.0, 20.0)","(20.0, MaxKey]"]}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[12.0, 12.0]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[9.0, 9.0]"]}}}]}},
    "keys" :  93496,
    "docs" :  95243,
    "sorts":      0,
    "plans":     17,
    "rows" :  82601},

{">>>pipeline": [{"$match":{"a_compound":{"$exists":true},"c_idx":{"$exists":true},"d_compound":{"$exists":true}}},{"$limit":36}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MinKey, MaxKey]"]}}}},
    "keys" :     36,
    "docs" :     36,
    "sorts":      0,
    "plans":      5,
    "rows" :     36},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$nin":[13,12]}},{"a_compound":{"$all":[7,6]}}],"h_idx":{"$nin":[3,7,6]}}},{"$sort":{"i_idx":-1}},{"$limit":94},{"$project":{"_id":0,"i_noidx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MaxKey, MinKey]"]}}}}},
    "keys" :     99,
    "docs" :     99,
    "sorts":      0,
    "plans":     11,
    "rows" :     94},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$nin":[8,7]}},{"d_compound":{"$lte":20}},{"$or":[{"a_compound":{"$nin":[14,12,3]}},{"a_compound":{"$lt":11}}]}],"$or":[{"a_compound":{"$all":[17,8,4]}},{"k_idx":{"$exists":false}},{"a_compound":{"$elemMatch":{"$nin":[9,13,17]}}}]}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[-inf, 11.0)"]}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1_i_compound_1","indexBounds":{"a_compound":["[MinKey, 3.0)","(3.0, 12.0)","(12.0, 14.0)","(14.0, MaxKey]"],"i_compound":["[MinKey, MaxKey]"]}}}]}},
    "keys" : 632095,
    "docs" : 200000,
    "sorts":      0,
    "plans":     17,
    "rows" :  79691},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[19,9,2]}},{"k_compound":{"$exists":false}}],"a_compound":{"$eq":5}}},{"$project":{"_id":0,"a_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[5.0, 5.0]"]}}}},
    "keys" :  12528,
    "docs" :  12528,
    "sorts":      0,
    "plans":     14,
    "rows" :  12528},

{">>>pipeline": [{"$match":{"$or":[{"k_compound":{"$ne":3}},{"k_compound":{"$exists":true}}],"d_compound":{"$lte":19}}},{"$project":{"_id":0,"a_compound":1,"a_noidx":1,"k_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","inputStage":{"stage":"OR","inputStages":[{"stage":"IXSCAN","indexName":"d_compound_1_k_compound_1","indexBounds":{"d_compound":["[-inf, 19.0]"],"k_compound":["[MinKey, 3.0)","(3.0, MaxKey]"]}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_compound_1_k_compound_1","indexBounds":{"d_compound":["[-inf, 19.0]"],"k_compound":["[MinKey, MaxKey]"]}}}]}}},
    "keys" : 199901,
    "docs" : 200000,
    "sorts":      0,
    "plans":     11,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$and":[{"d_compound":{"$gt":1}},{"$and":[{"h_compound":{"$ne":18}},{"i_idx":{"$ne":12}}]},{"a_idx":{"$lt":11}},{"d_idx":{"$nin":[6,5]}}],"$or":[{"$and":[{"a_compound":{"$in":[10,16]}},{"a_idx":{"$all":[15,6,17]}}]},{"$and":[{"c_compound":{"$exists":true}},{"d_compound":{"$exists":false}}]},{"a_compound":{"$elemMatch":{"$exists":false}}},{"z_compound":{"$lte":2}}]}},{"$limit":235}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_compound_1_k_compound_1","indexBounds":{"d_compound":["(1.0, inf]"],"k_compound":["[MinKey, MaxKey]"]}}}},
    "keys" :    344,
    "docs" :    344,
    "sorts":      0,
    "plans":     16,
    "rows" :    235},

{">>>pipeline": [{"$match":{"$or":[{"$and":[{"a_noidx":{"$lte":10}},{"a_compound":{"$elemMatch":{"$exists":false,"$in":[8,4,1]}}}]},{"$and":[{"i_compound":{"$exists":true}},{"i_idx":{"$exists":true}},{"a_compound":{"$all":[14,3,4]}}]},{"a_compound":{"$elemMatch":{"$exists":true}}}],"a_idx":{"$all":[1,3]}}},{"$sort":{"a_idx":-1,"d_idx":-1}},{"$limit":107},{"$project":{"_id":0,"a_compound":1,"a_idx":1,"a_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[1.0, 1.0]"]}}}}},
    "keys" :  44506,
    "docs" :  44506,
    "sorts":  31978,
    "plans":     13,
    "rows" :    107},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$all":[18,11]}},{"d_compound":{"$exists":true}}],"a_idx":{"$all":[11,1]}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[11.0, 11.0]"]}}},
    "keys" :   1004,
    "docs" :   1004,
    "sorts":      0,
    "plans":     12,
    "rows" :   1000},

{">>>pipeline": [{"$match":{"$nor":[{"i_noidx":{"$in":[7,16]}},{"a_compound":{"$all":[4,3,6,15]}}],"a_compound":{"$elemMatch":{"$lt":15}}}},{"$skip":17},{"$project":{"_id":0,"a_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[-inf, 15.0)"]}}}}},
    "keys" : 194941,
    "docs" : 100000,
    "sorts":      0,
    "plans":     12,
    "rows" :  99981},

{">>>pipeline": [{"$match":{"$nor":[{"c_noidx":{"$gte":19}},{"a_compound":{"$all":[18,1,2]}}],"a_compound":{"$elemMatch":{"$lt":18}}}},{"$skip":13}],
    "winningPlan": {"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[-inf, 18.0)"]}}}},
    "keys" : 197941,
    "docs" : 100000,
    "sorts":      0,
    "plans":     10,
    "rows" :  99987},

{">>>pipeline": [{"$match":{"$or":[{"i_idx":{"$nin":[16,6]}},{"a_compound":{"$all":[13,4,3,20]}}],"k_compound":{"$nin":[1,7]}}},{"$sort":{"h_idx":-1}},{"$limit":195}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MaxKey, MinKey]"]}}}},
    "keys" :    195,
    "docs" :    195,
    "sorts":      0,
    "plans":     13,
    "rows" :    195},

{">>>pipeline": [{"$match":{"$and":[{"a_idx":{"$in":[4,17,8]}},{"$nor":[{"a_compound":{"$all":[16,5,18,3]}},{"d_idx":{"$exists":false}}]}],"a_idx":{"$nin":[18,2,9]}}},{"$limit":144},{"$project":{"_id":0,"a_noidx":1,"d_compound":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[4.0, 4.0]","[8.0, 8.0]","[17.0, 17.0]"]}}}}},
    "keys" :    213,
    "docs" :    213,
    "sorts":      0,
    "plans":     13,
    "rows" :    144},

{">>>pipeline": [{"$match":{"$nor":[{"$or":[{"a_compound":{"$exists":false}},{"a_idx":{"$elemMatch":{"$eq":2,"$in":[11,4,7]}}},{"a_compound":{"$all":[6,4,11,19]}}]},{"a_idx":{"$elemMatch":{"$exists":false,"$gte":19}}}],"a_compound":{"$elemMatch":{"$in":[13,11]}}}},{"$limit":113}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[11.0, 11.0]","[13.0, 13.0]"]}}}},
    "keys" :    113,
    "docs" :    113,
    "sorts":      0,
    "plans":     14,
    "rows" :    113},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$exists":true}},{"a_compound":{"$elemMatch":{"$exists":true}}},{"z_compound":{"$lt":19}},{"a_compound":{"$in":[10,15,17]}},{"c_idx":{"$exists":true}}],"d_compound":{"$exists":true}}},{"$sort":{"h_idx":-1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[10.0, 10.0]","[15.0, 15.0]","[17.0, 17.0]"]}}}},
    "keys" :   3010,
    "docs" :   3006,
    "sorts":  27079,
    "plans":     12,
    "rows" :   3006},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$exists":true}},{"a_idx":{"$all":[13,18]}},{"a_compound":{"$all":[10,1,3,12]}}],"a_compound":{"$gte":8},"a_idx":{"$elemMatch":{"$nin":[13,7]}}}},{"$project":{"_id":0,"a_compound":1,"a_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[8.0, inf]"]}}}},
    "keys" : 299105,
    "docs" :  99992,
    "sorts":      0,
    "plans":     12,
    "rows" :  99992},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$elemMatch":{"$nin":[9,10]}}},{"a_compound":{"$exists":false}},{"c_compound":{"$exists":false}}],"h_compound":{"$nin":[8,13,1]},"z_compound":{"$exists":true}}},{"$skip":66}],
    "winningPlan": {"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_compound_1","indexBounds":{"h_compound":["[MinKey, 1.0)","(1.0, 8.0)","(8.0, 13.0)","(13.0, MaxKey]"]}}}},
    "keys" :  97003,
    "docs" :  97000,
    "sorts":      0,
    "plans":     13,
    "rows" :  96934},

{">>>pipeline": [{"$match":{"$nor":[{"d_noidx":{"$exists":false}},{"z_compound":{"$eq":18}},{"a_noidx":{"$elemMatch":{"$in":[12,9],"$nin":[17,12]}}},{"$or":[{"c_noidx":{"$eq":15}},{"h_idx":{"$in":[18,18]}}]}],"$or":[{"a_idx":{"$elemMatch":{"$gt":18,"$nin":[4,5,17,7]}}},{"a_compound":{"$in":[6,10,4]}},{"a_compound":{"$lte":11}},{"c_compound":{"$exists":false}}]}},{"$sort":{"d_idx":-1}},{"$limit":254},{"$project":{"_id":0,"a_compound":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MaxKey, MinKey]"]}}}}},
    "keys" :  10282,
    "docs" :  10282,
    "sorts":      0,
    "plans":     14,
    "rows" :    254},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[19,2,19]}},{"i_noidx":{"$lte":6}},{"z_compound":{"$in":[19,4,8]}}],"a_compound":{"$nin":[20,20,7]},"k_compound":{"$ne":4}}},{"$sort":{"i_idx":1,"k_idx":-1}},{"$limit":70},{"$project":{"a_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1_a_compound_1","indexBounds":{"k_compound":["[MinKey, 4.0)","(4.0, MaxKey]"],"a_compound":["[MinKey, 7.0)","(7.0, 20.0)","(20.0, MaxKey]"]}}}}},
    "keys" : 457730,
    "docs" :  99900,
    "sorts": 426068,
    "plans":     15,
    "rows" :     70},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$in":[11,11,16,14]}},{"a_noidx":{"$eq":3}},{"a_compound":{"$all":[20,2,8]}}],"a_compound":{"$in":[7,12]}}},{"$project":{"d_idx":1,"z_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[7.0, 7.0]","[12.0, 12.0]"]}}}},
    "keys" :  11259,
    "docs" :  11255,
    "sorts":      0,
    "plans":     12,
    "rows" :   9362},

{">>>pipeline": [{"$match":{"c_compound":{"$nin":[13,6]},"k_compound":{"$eq":1},"z_compound":{"$nin":[16,14,18,18]}}},{"$project":{"h_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[1.0, 1.0]"]}}}},
    "keys" :    100,
    "docs" :    100,
    "sorts":      0,
    "plans":      6,
    "rows" :    100},

{">>>pipeline": [{"$match":{"$and":[{"a_idx":{"$gte":3}},{"z_compound":{"$exists":true}},{"$or":[{"a_compound":{"$lt":16}},{"a_compound":{"$in":[18,1]}},{"a_compound":{"$nin":[14,4,2,20]}},{"a_idx":{"$all":[3,2]}}]}],"z_idx":{"$exists":true}}},{"$sort":{"a_idx":1}},{"$skip":32},{"$project":{"a_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":     15,
    "rows" :  99967},

{">>>pipeline": [{"$match":{"$or":[{"k_compound":{"$exists":true}},{"z_compound":{"$exists":false}},{"a_compound":{"$elemMatch":{"$exists":false}}},{"a_idx":{"$all":[5,8,12]}}],"a_compound":{"$all":[4,3]}}},{"$sort":{"a_idx":1,"c_idx":-1,"i_idx":1}},{"$project":{"a_compound":1,"a_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[4.0, 4.0]"]}}}}},
    "keys" :  17094,
    "docs" :  17094,
    "sorts":  22542,
    "plans":     15,
    "rows" :   2549},

{">>>pipeline": [{"$match":{"$or":[{"$or":[{"a_compound":{"$all":[20,13,2,18]}},{"z_idx":{"$lt":4}}]},{"a_idx":{"$in":[11,14]}}],"i_compound":{"$lte":11}}},{"$sort":{"d_idx":-1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_compound_1","indexBounds":{"i_compound":["[-inf, 11.0]"]}}}},
    "keys" :     12,
    "docs" :     12,
    "sorts":     37,
    "plans":     12,
    "rows" :     11},

{">>>pipeline": [{"$match":{"$and":[{"i_noidx":{"$in":[4,4,14]}},{"$or":[{"a_compound":{"$lt":17}},{"c_compound":{"$gte":13}}]},{"a_compound":{"$elemMatch":{"$in":[20,18,4,12]}}}]}},{"$sort":{"d_idx":-1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[4.0, 4.0]","[12.0, 12.0]","[18.0, 18.0]","[20.0, 20.0]"]}}}},
    "keys" :  20098,
    "docs" :  19876,
    "sorts":      3,
    "plans":      7,
    "rows" :      2},

{">>>pipeline": [{"$match":{"$nor":[{"d_noidx":{"$exists":false}},{"a_compound":{"$elemMatch":{"$exists":false}}},{"a_compound":{"$all":[13,9,3]}}],"a_noidx":{"$elemMatch":{"$lte":12}}}},{"$sort":{"i_idx":-1}},{"$project":{"_id":0,"a_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      9,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"a_compound":{"$exists":true},"k_compound":{"$exists":true},"z_compound":{"$exists":true}}},{"$limit":32},{"$project":{"a_idx":1,"a_noidx":1,"d_compound":1,"z_compound":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_compound_1","indexBounds":{"z_compound":["[MinKey, MaxKey]"]}}}}},
    "keys" :     32,
    "docs" :     32,
    "sorts":      0,
    "plans":      6,
    "rows" :     32},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$all":[2,8]}},{"a_idx":{"$all":[13,11,17,14]}},{"a_idx":{"$in":[13,4]}}],"h_idx":{"$eq":9}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[9.0, 9.0]"]}}},
    "keys" :   1000,
    "docs" :   1000,
    "sorts":      0,
    "plans":     10,
    "rows" :     73},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$nin":[15,5]}},{"z_compound":{"$gt":3}},{"$or":[{"i_compound":{"$nin":[12,6,16,19,13,10]}},{"a_compound":{"$elemMatch":{"$eq":17,"$exists":true}}}]},{"a_compound":{"$lte":15}}],"a_idx":{"$nin":[5,7]}}},{"$sort":{"c_idx":1}},{"$project":{"_id":0,"a_compound":1,"a_noidx":1,"z_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     16,
    "rows" :   7172},

{">>>pipeline": [{"$match":{"$or":[{"$or":[{"a_compound":{"$elemMatch":{"$in":[6,14]}}},{"a_idx":{"$eq":6}}]},{"a_idx":{"$elemMatch":{"$lte":17,"$nin":[19,16,2]}}},{"$or":[{"a_compound":{"$all":[17,5]}},{"a_compound":{"$all":[15,15,16,5,13]}}]}],"a_compound":{"$elemMatch":{"$lte":17}},"z_compound":{"$in":[15,5]}}},{"$sort":{"c_idx":-1}},{"$project":{"_id":0,"a_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_compound_1","indexBounds":{"z_compound":["[5.0, 5.0]","[15.0, 15.0]"]}}}}},
    "keys" :   2838,
    "docs" :   2837,
    "sorts":  25393,
    "plans":     14,
    "rows" :   2837},

{">>>pipeline": [{"$match":{"$and":[{"a_idx":{"$elemMatch":{"$nin":[6,15]}}},{"a_idx":{"$elemMatch":{"$gt":9,"$gte":6}}},{"$and":[{"$or":[{"a_idx":{"$all":[14,1,6]}},{"a_idx":{"$elemMatch":{"$lte":3}}},{"d_idx":{"$in":[2,19,5]}},{"a_idx":{"$all":[15,9,3]}}]},{"a_compound":{"$nin":[8,4,18]}}]}],"k_idx":{"$nin":[3,4]}}},{"$limit":164},{"$skip":55},{"$project":{"a_compound":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MinKey, 3.0)","(3.0, 4.0)","(4.0, MaxKey]"]}}}}}},
    "keys" :    174,
    "docs" :    174,
    "sorts":      0,
    "plans":     15,
    "rows" :    109},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$nin":[17,7,16]}},{"a_compound":{"$all":[17,19,3]}}],"a_compound":{"$gt":15}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[17.0, 17.0]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, 7.0)","(7.0, 16.0)","(16.0, 17.0)","(17.0, MaxKey]"]}}}]}},
    "keys" : 457687,
    "docs" : 189748,
    "sorts":      0,
    "plans":      9,
    "rows" :  88733},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$all":[1,1,6,11]}},{"a_idx":{"$all":[7,16,4]}},{"a_compound":{"$exists":true}}],"a_compound":{"$lt":8}}},{"$sort":{"a_idx":-1,"k_idx":-1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[-inf, 8.0)"]}}}},
    "keys" : 169836,
    "docs" :  99978,
    "sorts": 1250995,
    "plans":     11,
    "rows" :  99978},

{">>>pipeline": [{"$match":{"$or":[{"c_idx":{"$in":[16,1,8,12]}},{"$or":[{"h_idx":{"$exists":false}},{"a_idx":{"$all":[16,18]}},{"a_compound":{"$exists":true}}]}],"a_idx":{"$gt":11}}},{"$sort":{"z_idx":-1}},{"$limit":15},{"$project":{"_id":0,"a_idx":1,"i_idx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MaxKey, MinKey]"]}}}}},
    "keys" :     15,
    "docs" :     15,
    "sorts":      0,
    "plans":      8,
    "rows" :     15},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[9,12]}},{"a_compound":{"$exists":false}}],"k_compound":{"$exists":true}}},{"$sort":{"c_idx":1,"z_idx":-1}},{"$limit":51}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1_a_compound_1","indexBounds":{"k_compound":["[MinKey, MaxKey]"],"a_compound":["[MinKey, MaxKey]"]}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts": 493183,
    "plans":     13,
    "rows" :     51},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$in":[17,8]}},{"k_compound":{"$in":[17,1,8]}},{"i_idx":{"$in":[19,5]}},{"a_compound":{"$all":[1,8,12]}}],"h_compound":{"$in":[6,7,16]}}},{"$sort":{"k_idx":1,"z_idx":1}},{"$project":{"a_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_compound_1","indexBounds":{"h_compound":["[6.0, 6.0]","[7.0, 7.0]","[16.0, 16.0]"]}}}}},
    "keys" :   3002,
    "docs" :   3000,
    "sorts":  26999,
    "plans":     16,
    "rows" :   2998},

{">>>pipeline": [{"$match":{"$and":[{"d_compound":{"$exists":true}},{"z_noidx":{"$exists":true}},{"h_idx":{"$nin":[17,10,2,18]}}],"$or":[{"k_compound":{"$gt":11}},{"a_idx":{"$all":[15,11,2]}},{"a_idx":{"$exists":true}}],"c_compound":{"$nin":[13,12]}}},{"$sort":{"i_idx":-1}},{"$limit":18},{"$project":{"a_compound":1,"a_noidx":1,"z_noidx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MaxKey, MinKey]"]}}}}},
    "keys" :     18,
    "docs" :     18,
    "sorts":      0,
    "plans":     16,
    "rows" :     18},

{">>>pipeline": [{"$match":{"$and":[{"k_compound":{"$nin":[1,3]}},{"$or":[{"a_compound":{"$exists":true}},{"a_compound":{"$all":[13,3]}}]},{"a_compound":{"$elemMatch":{"$in":[4,1,16,11]}}},{"a_idx":{"$elemMatch":{"$exists":true,"$nin":[9,9,14,12,13]}}}],"$nor":[{"i_noidx":{"$eq":1}},{"d_compound":{"$exists":false}}]}},{"$limit":106},{"$project":{"a_compound":1,"a_idx":1,"k_idx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[1.0, 1.0]","[4.0, 4.0]","[11.0, 11.0]","[16.0, 16.0]"]}}}}},
    "keys" :    108,
    "docs" :    108,
    "sorts":      0,
    "plans":     16,
    "rows" :    106},

{">>>pipeline": [{"$match":{"a_compound":{"$all":[1,1,6]},"h_idx":{"$nin":[7,14,16]},"z_compound":{"$ne":18}}},{"$sort":{"k_idx":-1}},{"$limit":54}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MaxKey, MinKey]"]}}}},
    "keys" :   1344,
    "docs" :   1344,
    "sorts":      0,
    "plans":      9,
    "rows" :     54},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$all":[5,18,3]}},{"$or":[{"h_idx":{"$gte":15}},{"a_compound":{"$all":[16,10]}}]}],"i_idx":{"$nin":[4,13]}}},{"$sort":{"c_idx":-1}},{"$skip":3}],
    "winningPlan": {"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     11,
    "rows" :  84997},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[2,10,8,5]}},{"a_noidx":{"$eq":15}},{"k_compound":{"$in":[16,14]}},{"a_compound":{"$ne":9}}],"a_idx":{"$in":[12,9,10]}}},{"$limit":81}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[9.0, 9.0]"]}}}},
    "keys" :     81,
    "docs" :     81,
    "sorts":      0,
    "plans":     15,
    "rows" :     81},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$nin":[18,4,10]}},{"a_idx":{"$elemMatch":{"$lte":1}}},{"h_idx":{"$nin":[9,11]}}],"a_compound":{"$gt":18},"a_idx":{"$in":[5,5]}}},{"$sort":{"a_idx":-1}},{"$limit":36},{"$project":{"k_compound":1,"k_idx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}}}},
    "keys" :    895,
    "docs" :    895,
    "sorts":      0,
    "plans":      8,
    "rows" :     36},

{">>>pipeline": [{"$match":{"$or":[{"k_compound":{"$exists":true}},{"a_idx":{"$all":[5,19,12]}}],"h_compound":{"$in":[3,6,15,9]}}},{"$project":{"a_noidx":1,"c_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_compound_1","indexBounds":{"h_compound":["[3.0, 3.0]","[6.0, 6.0]","[9.0, 9.0]","[15.0, 15.0]"]}}}},
    "keys" :   4004,
    "docs" :   4000,
    "sorts":      0,
    "plans":      9,
    "rows" :   4000},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$in":[11,3]}},{"h_compound":{"$nin":[8,14,18]}},{"a_compound":{"$all":[18,17,1]}}],"z_compound":{"$exists":true}}},{"$limit":211},{"$project":{"a_compound":1,"a_noidx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_compound_1","indexBounds":{"h_compound":["[8.0, 8.0]","[14.0, 14.0]","[18.0, 18.0]"]}}}}},
    "keys" :    258,
    "docs" :    258,
    "sorts":      0,
    "plans":     13,
    "rows" :    211},

{">>>pipeline": [{"$match":{"$nor":[{"k_idx":{"$exists":false}},{"$and":[{"a_compound":{"$all":[14,17,18,20]}},{"a_compound":{"$all":[7,13]}},{"a_compound":{"$all":[2,1,5]}},{"d_compound":{"$exists":true}}]}],"a_idx":{"$elemMatch":{"$ne":16}},"d_compound":{"$lt":6}}},{"$project":{"_id":0,"a_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_compound_1","indexBounds":{"d_compound":["[-inf, 6.0)"]}}}},
    "keys" :  60000,
    "docs" :  60000,
    "sorts":      0,
    "plans":     14,
    "rows" :  60000},

{">>>pipeline": [{"$match":{"$or":[{"i_compound":{"$exists":true}},{"$and":[{"a_compound":{"$all":[19,5]}},{"k_noidx":{"$gte":10}}]},{"h_compound":{"$lt":16}}],"a_noidx":{"$exists":true}}},{"$sort":{"k_idx":-1}},{"$project":{"_id":0,"a_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     10,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"a_compound":{"$gte":13},"a_idx":{"$gt":12},"k_compound":{"$lt":16}}},{"$limit":37}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1_a_compound_1","indexBounds":{"k_compound":["[-inf, 16.0)"],"a_compound":["[13.0, inf]"]}}}},
    "keys" :     38,
    "docs" :     37,
    "sorts":      0,
    "plans":      5,
    "rows" :     37},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$all":[13,17,4]}},{"a_compound":{"$all":[19,20]}},{"c_compound":{"$exists":true}}],"c_compound":{"$nin":[20,20,13]},"d_idx":{"$exists":true}}},{"$limit":144},{"$project":{"_id":0,"a_noidx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_compound_1","indexBounds":{"c_compound":["[MinKey, 13.0)","(13.0, 20.0)","(20.0, MaxKey]"]}}}}},
    "keys" :    144,
    "docs" :    144,
    "sorts":      0,
    "plans":     12,
    "rows" :    144},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$lte":2}},{"i_compound":{"$eq":20}},{"a_idx":{"$all":[14,17,17,1]}}],"a_idx":{"$gte":10}}},{"$project":{"_id":0,"a_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[10.0, inf]"]}}}},
    "keys" : 279011,
    "docs" :  99990,
    "sorts":      0,
    "plans":      9,
    "rows" :  79314},

{">>>pipeline": [{"$match":{"$nor":[{"d_idx":{"$eq":3}},{"$nor":[{"z_compound":{"$nin":[9,20,5,6]}},{"d_compound":{"$gte":5}},{"a_idx":{"$all":[4,12]}},{"c_compound":{"$exists":true}}]}],"a_compound":{"$all":[4,4,9]},"z_noidx":{"$gte":4}}},{"$limit":186},{"$project":{"_id":0,"a_noidx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[9.0, 9.0]"]}}}}},
    "keys" :   2223,
    "docs" :   2223,
    "sorts":      0,
    "plans":     16,
    "rows" :    186},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$all":[14,17,18,12]}},{"a_idx":{"$nin":[17,12]}},{"c_compound":{"$lt":2}}]}},{"$sort":{"z_idx":1}},{"$project":{"_id":0,"a_compound":1,"a_noidx":1,"h_noidx":1}}],
    "winningPlan": {"stage":"SUBPLAN","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     10,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$nin":[12,1]}},{"a_compound":{"$in":[8,1]}}],"$or":[{"z_compound":{"$gt":12}},{"a_idx":{"$all":[11,1,7]}},{"a_compound":{"$nin":[9,1,13]}}]}},{"$limit":98},{"$project":{"a_idx":1,"c_compound":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[MinKey, 1.0)","(1.0, 12.0)","(12.0, MaxKey]"]}}}}},
    "keys" :  11050,
    "docs" :  10961,
    "sorts":      0,
    "plans":     14,
    "rows" :     98},

{">>>pipeline": [{"$match":{"$or":[{"k_compound":{"$exists":true}},{"c_idx":{"$lt":10}},{"a_compound":{"$all":[14,10,9]}}],"a_compound":{"$lt":20}}},{"$project":{"a_idx":1,"c_idx":1,"d_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[-inf, 10.0)"]}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[14.0, 14.0]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[MinKey, MaxKey]"]}}}]}}},
    "keys" : 201000,
    "docs" : 201000,
    "sorts":      0,
    "plans":     11,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[16,1,9]}},{"d_compound":{"$exists":false}}],"a_compound":{"$exists":true},"a_idx":{"$elemMatch":{"$ne":9}},"a_noidx":{"$elemMatch":{"$in":[11,6],"$lt":7}}}},{"$sort":{"c_idx":-1}},{"$limit":49}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MaxKey, MinKey]"]}}}},
    "keys" :    434,
    "docs" :    434,
    "sorts":      0,
    "plans":     14,
    "rows" :     49},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$all":[1,8,15]}},{"a_idx":{"$exists":false}},{"h_idx":{"$ne":6}},{"a_compound":{"$exists":false}}],"h_compound":{"$exists":true}}},{"$sort":{"a_idx":-1,"i_idx":-1}},{"$limit":112},{"$project":{"_id":0,"z_compound":1,"z_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MinKey, 6.0)","(6.0, MaxKey]"]}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[1.0, 1.0]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[null, null]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[null, null]"]}}}]}}}},
    "keys" : 143507,
    "docs" : 143506,
    "sorts": 566131,
    "plans":     10,
    "rows" :    112},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$all":[6,5]}},{"a_idx":{"$exists":true}},{"i_compound":{"$exists":false}}],"a_idx":{"$elemMatch":{"$exists":true,"$in":[2,20]}},"k_compound":{"$in":[8,16]}}},{"$sort":{"k_idx":1}},{"$limit":59},{"$project":{"c_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[8.0, 8.0]","[16.0, 16.0]"]}}}}},
    "keys" :    202,
    "docs" :    200,
    "sorts":    320,
    "plans":     13,
    "rows" :     59},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[8,20,3,5]}},{"a_idx":{"$exists":false}},{"a_idx":{"$nin":[1,14,20]}}],"h_compound":{"$exists":true}}},{"$sort":{"z_idx":1}},{"$limit":117}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MinKey, MaxKey]"]}}}},
    "keys" :    117,
    "docs" :    117,
    "sorts":      0,
    "plans":     14,
    "rows" :    117},

{">>>pipeline": [{"$match":{"$and":[{"$nor":[{"a_idx":{"$nin":[10,11]}},{"a_compound":{"$all":[11,1,14]}},{"k_compound":{"$in":[10,10]}}]},{"z_compound":{"$nin":[5,11]}}],"i_compound":{"$exists":true}}},{"$sort":{"a_idx":-1}},{"$limit":7}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}}},
    "keys" :    390,
    "docs" :    390,
    "sorts":      0,
    "plans":     18,
    "rows" :      7},

{">>>pipeline": [{"$match":{"$or":[{"h_idx":{"$nin":[5,3]}},{"d_compound":{"$exists":true}},{"i_compound":{"$nin":[6,12,18]}},{"a_compound":{"$elemMatch":{"$eq":15,"$nin":[6,19,7]}}}],"a_compound":{"$in":[15,20]},"k_idx":{"$gt":4}}},{"$sort":{"d_idx":1,"h_idx":-1,"k_idx":1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[15.0, 15.0]","[20.0, 20.0]"]}}}},
    "keys" :   2002,
    "docs" :   2000,
    "sorts":  17202,
    "plans":     13,
    "rows" :   2000},

{">>>pipeline": [{"$match":{"$and":[{"$nor":[{"a_idx":{"$elemMatch":{"$exists":false,"$lte":10}}},{"a_compound":{"$exists":false}}]},{"a_compound":{"$in":[14,6,5]}},{"z_compound":{"$exists":true}}],"$or":[{"$and":[{"c_compound":{"$exists":false}},{"d_compound":{"$exists":false}}]},{"c_idx":{"$nin":[17,5]}},{"a_compound":{"$elemMatch":{"$exists":false,"$in":[17,9,5],"$nin":[10,1]}}}]}},{"$sort":{"a_idx":-1}},{"$limit":185},{"$project":{"a_idx":1,"a_noidx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}}}},
    "keys" :    774,
    "docs" :    774,
    "sorts":      0,
    "plans":     17,
    "rows" :    185},

{">>>pipeline": [{"$match":{"a_compound":{"$in":[19,7]},"z_compound":{"$in":[15,3,13,9,2]}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[7.0, 7.0]","[19.0, 19.0]"]}}},
    "keys" :  11259,
    "docs" :  11253,
    "sorts":      0,
    "plans":      4,
    "rows" :   5433},

{">>>pipeline": [{"$match":{"$and":[{"a_idx":{"$in":[16,3]}},{"d_compound":{"$gte":8}}],"c_compound":{"$exists":true}}},{"$sort":{"c_idx":-1}},{"$limit":54}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MaxKey, MinKey]"]}}}},
    "keys" :   1591,
    "docs" :   1591,
    "sorts":      0,
    "plans":      6,
    "rows" :     54},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[13,6,11]}},{"a_idx":{"$nin":[5,13,13,3]}}],"k_compound":{"$lt":8}}},{"$sort":{"k_idx":-1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[-inf, 8.0)"]}}}},
    "keys" :    800,
    "docs" :    800,
    "sorts":   2205,
    "plans":     14,
    "rows" :    325},

{">>>pipeline": [{"$match":{"$or":[{"$or":[{"a_compound":{"$lt":16}},{"a_idx":{"$all":[9,8,12]}},{"c_idx":{"$nin":[1,5]}},{"k_idx":{"$lt":18}}]},{"a_compound":{"$nin":[20,5,13,14]}},{"a_idx":{"$nin":[2,1]}}]}},{"$sort":{"d_idx":-1}},{"$skip":76},{"$project":{"_id":0,"a_compound":1}}],
    "winningPlan": {"stage":"SUBPLAN","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MaxKey, MinKey]"]}}}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     11,
    "rows" :  99924},

{">>>pipeline": [{"$match":{"$or":[{"$and":[{"a_idx":{"$all":[2,5]}},{"i_noidx":{"$exists":false}},{"z_compound":{"$in":[10,12]}},{"a_idx":{"$nin":[11,20]}}]},{"i_compound":{"$nin":[3,6]}}],"a_compound":{"$gte":2}}},{"$sort":{"c_idx":-1}},{"$skip":18},{"$project":{"_id":0,"a_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MaxKey, MinKey]"]}}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     12,
    "rows" :  99980},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$all":[10,1]}},{"k_compound":{"$exists":true}}],"a_compound":{"$elemMatch":{"$exists":true}}}},{"$sort":{"h_idx":1,"i_idx":-1}},{"$limit":48},{"$project":{"_id":0,"a_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1_a_compound_1","indexBounds":{"k_compound":["[MinKey, MaxKey]"],"a_compound":["[MinKey, MaxKey]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1_i_compound_1","indexBounds":{"a_compound":["[10.0, 10.0]"],"i_compound":["[MinKey, MaxKey]"]}}}]}}}},
    "keys" : 469948,
    "docs" : 201007,
    "sorts": 487120,
    "plans":     11,
    "rows" :     48},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$nin":[14,16]}},{"z_compound":{"$lte":18}},{"$or":[{"c_idx":{"$exists":false}},{"a_compound":{"$gt":16}}]}],"i_compound":{"$nin":[5,6,7]}}},{"$sort":{"h_idx":-1}},{"$skip":65}],
    "winningPlan": {"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     13,
    "rows" :  99932},

{">>>pipeline": [{"$match":{"$nor":[{"a_noidx":{"$elemMatch":{"$gte":20}}},{"a_noidx":{"$gt":15}},{"$nor":[{"z_compound":{"$lte":12}},{"a_compound":{"$all":[18,1,7,12,6]}}]}],"a_compound":{"$in":[14,8,13]}}},{"$sort":{"a_idx":-1,"c_idx":-1}},{"$limit":173}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[8.0, 8.0]","[13.0, 13.0]","[14.0, 14.0]"]}}}},
    "keys" :  12083,
    "docs" :  12079,
    "sorts":      6,
    "plans":     12,
    "rows" :      3},

{">>>pipeline": [{"$match":{"$or":[{"d_compound":{"$lte":4}},{"a_idx":{"$all":[20,2]}},{"$or":[{"h_compound":{"$gte":10}},{"h_idx":{"$gte":3}}]}],"d_noidx":{"$ne":4}}},{"$sort":{"d_idx":-1}},{"$skip":18},{"$project":{"_id":0,"z_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MaxKey, MinKey]"]}}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      7,
    "rows" :  89982},

{">>>pipeline": [{"$match":{"$and":[{"a_idx":{"$gt":12}},{"$or":[{"k_compound":{"$ne":15}},{"d_idx":{"$ne":12}},{"a_compound":{"$all":[12,15]}}]},{"a_compound":{"$in":[16,13,2,14]}}]}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["(12.0, inf]"]}}},
    "keys" : 276000,
    "docs" :  99987,
    "sorts":      0,
    "plans":     12,
    "rows" :  40803},

{">>>pipeline": [{"$match":{"$or":[{"h_compound":{"$gte":17}},{"$and":[{"z_compound":{"$gt":13}},{"z_noidx":{"$exists":true}},{"k_idx":{"$exists":true}}]},{"d_compound":{"$nin":[6,7,16,19]}}],"a_compound":{"$gte":15}}},{"$sort":{"z_idx":-1}},{"$limit":9},{"$project":{"_id":0,"a_compound":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MaxKey, MinKey]"]}}}}},
    "keys" :      9,
    "docs" :      9,
    "sorts":      0,
    "plans":      9,
    "rows" :      9},

{">>>pipeline": [{"$match":{"a_compound":{"$all":[4,14,2]}}},{"$sort":{"a_idx":1}},{"$limit":22}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[14.0, 14.0]"]}}}},
    "keys" :   1000,
    "docs" :   1000,
    "sorts":   1334,
    "plans":      8,
    "rows" :     22},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$in":[14,18,12,10]}},{"$and":[{"c_compound":{"$gt":12}},{"z_noidx":{"$exists":true}},{"a_noidx":{"$exists":false}}]},{"a_compound":{"$all":[20,7]}},{"a_compound":{"$gt":5}}],"a_idx":{"$gt":5}}},{"$skip":42},{"$project":{"_id":0,"z_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["(5.0, inf]"]}}}}},
    "keys" : 320235,
    "docs" :  99994,
    "sorts":      0,
    "plans":     10,
    "rows" :  99952},

{">>>pipeline": [{"$match":{"i_compound":{"$nin":[11,20,7,16]},"k_compound":{"$in":[1,3,17]}}},{"$sort":{"z_idx":-1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[1.0, 1.0]","[3.0, 3.0]","[17.0, 17.0]"]}}}},
    "keys" :    303,
    "docs" :    300,
    "sorts":   2011,
    "plans":      5,
    "rows" :    300},

{">>>pipeline": [{"$match":{"$or":[{"i_compound":{"$exists":true}},{"a_compound":{"$all":[13,16,8]}}]}},{"$sort":{"k_idx":-1}},{"$skip":87},{"$project":{"a_compound":1,"a_noidx":1}}],
    "winningPlan": {"stage":"SUBPLAN","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MaxKey, MinKey]"]}}}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     10,
    "rows" :  99913},

{">>>pipeline": [{"$match":{"$and":[{"$or":[{"a_compound":{"$all":[12,1,6]}},{"a_idx":{"$elemMatch":{"$exists":true,"$in":[1,1],"$ne":1,"$nin":[16,5]}}},{"h_idx":{"$in":[11,3,11]}},{"a_idx":{"$elemMatch":{"$in":[8,20]}}},{"a_idx":{"$exists":false}},{"z_idx":{"$in":[7,10]}}]},{"$or":[{"$or":[{"$and":[{"d_idx":{"$lte":5}},{"c_compound":{"$gte":20}},{"d_noidx":{"$in":[18,12,5,19]}}]},{"a_compound":{"$all":[11,9,11]}},{"k_compound":{"$exists":true}},{"d_compound":{"$in":[14,2,11]}}]},{"$and":[{"a_noidx":{"$elemMatch":{"$exists":true,"$gt":1,"$in":[2,12],"$lt":19}}},{"a_noidx":{"$elemMatch":{"$lte":4}}},{"a_idx":{"$exists":true}}]}]}]}},{"$sort":{"k_idx":-1,"z_idx":1}},{"$limit":203}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[7.0, 7.0]","[10.0, 10.0]"]}},{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[3.0, 3.0]","[11.0, 11.0]"]}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[1.0, 1.0]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[null, null]","[8.0, 8.0]","[20.0, 20.0]"]}}}]}}},
    "keys" :  57885,
    "docs" :  68927,
    "sorts":  84218,
    "plans":     16,
    "rows" :    203},

{">>>pipeline": [{"$match":{"$or":[{"c_idx":{"$ne":10}},{"a_compound":{"$all":[19,20,11]}}],"h_compound":{"$gte":8}}},{"$project":{"_id":0,"i_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_compound_1","indexBounds":{"h_compound":["[8.0, inf]"]}}}},
    "keys" :  92000,
    "docs" :  92000,
    "sorts":      0,
    "plans":      8,
    "rows" :  92000},

{">>>pipeline": [{"$match":{"$or":[{"i_compound":{"$gt":8}},{"a_idx":{"$all":[1,13,2,7]}}]}},{"$sort":{"d_idx":1}}],
    "winningPlan": {"stage":"SUBPLAN","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     11,
    "rows" :  99991},

{">>>pipeline": [{"$match":{"$nor":[{"a_noidx":{"$gt":18}},{"$nor":[{"c_compound":{"$nin":[16,4,14,2,12]}},{"i_compound":{"$in":[2,14,11]}},{"k_compound":{"$in":[8,7]}}]}],"d_compound":{"$gte":3}}},{"$limit":28}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"IXSCAN","indexName":"i_compound_1","indexBounds":{"i_compound":["[2.0, 2.0]","[11.0, 11.0]","[14.0, 14.0]"]}},{"stage":"IXSCAN","indexName":"c_compound_1","indexBounds":{"c_compound":["[MinKey, 2.0)","(2.0, 4.0)","(4.0, 12.0)","(12.0, 14.0)","(14.0, 16.0)","(16.0, MaxKey]"]}},{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[7.0, 7.0]","[8.0, 8.0]"]}}]}}},
    "keys" : 100207,
    "docs" : 100000,
    "sorts":      0,
    "plans":     12,
    "rows" :     13},

{">>>pipeline": [{"$match":{"$and":[{"$nor":[{"$and":[{"a_compound":{"$nin":[19,19,17]}},{"a_compound":{"$all":[7,18]}},{"a_idx":{"$all":[20,15]}}]},{"a_compound":{"$exists":false}},{"c_compound":{"$in":[11,3]}}]},{"h_compound":{"$nin":[14,19]}}]}},{"$sort":{"d_idx":1}},{"$limit":92},{"$project":{"a_idx":1,"c_idx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" :     92,
    "docs" :     92,
    "sorts":      0,
    "plans":     14,
    "rows" :     92},

{">>>pipeline": [{"$match":{"$or":[{"c_idx":{"$nin":[4,9,7]}},{"a_idx":{"$all":[9,16]}},{"a_compound":{"$exists":true}}],"k_compound":{"$ne":7}}},{"$project":{"a_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[MinKey, 7.0)","(7.0, MaxKey]"]}}}},
    "keys" :  99901,
    "docs" :  99900,
    "sorts":      0,
    "plans":     11,
    "rows" :  99900},

{">>>pipeline": [{"$match":{"$nor":[{"k_compound":{"$gte":15}},{"a_compound":{"$all":[11,5,7,12]}}],"a_compound":{"$elemMatch":{"$exists":true,"$in":[11,6,15]}},"d_idx":{"$exists":true}}},{"$sort":{"c_idx":-1,"d_idx":-1,"z_idx":-1}},{"$project":{"_id":0,"z_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1_a_compound_1","indexBounds":{"k_compound":["[MinKey, 15.0)","(inf, MaxKey]"],"a_compound":["[6.0, 6.0]","[11.0, 11.0]","[15.0, 15.0]"]}}}}},
    "keys" :    259,
    "docs" :    217,
    "sorts":   1384,
    "plans":     15,
    "rows" :    217},

{">>>pipeline": [{"$match":{"$and":[{"i_idx":{"$ne":16}},{"$or":[{"a_idx":{"$all":[17,12,10]}},{"d_compound":{"$ne":5}},{"a_compound":{"$ne":16}}]}],"z_compound":{"$lte":3}}},{"$sort":{"h_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     14,
    "rows" :  87889},

{">>>pipeline": [{"$match":{"$nor":[{"d_noidx":{"$nin":[9,5]}},{"$nor":[{"a_idx":{"$all":[17,2,13,20]}},{"i_idx":{"$nin":[20,11]}}]}],"k_compound":{"$gte":10}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[10.0, inf]"]}}},
    "keys" :  99000,
    "docs" :  99000,
    "sorts":      0,
    "plans":      7,
    "rows" :  19800},

{">>>pipeline": [{"$match":{"$nor":[{"i_compound":{"$exists":false}},{"a_compound":{"$all":[14,17,15]}}],"d_compound":{"$in":[14,12,9,8,5]}}},{"$sort":{"h_idx":1}},{"$limit":229},{"$skip":21}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" :   5229,
    "docs" :   5229,
    "sorts":      0,
    "plans":     13,
    "rows" :    208},

{">>>pipeline": [{"$match":{"$and":[{"d_idx":{"$nin":[11,9,16]}},{"a_compound":{"$in":[2,11]}},{"d_compound":{"$nin":[19,13]}}],"$nor":[{"a_compound":{"$in":[3,18]}},{"a_compound":{"$in":[17,12]}}]}},{"$sort":{"h_idx":1}},{"$project":{"h_compound":1,"k_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     10,
    "rows" :  29561},

{">>>pipeline": [{"$match":{"$and":[{"$nor":[{"a_compound":{"$elemMatch":{"$exists":false}}},{"h_compound":{"$in":[9,4,7]}},{"c_noidx":{"$in":[15,9]}}]},{"$or":[{"a_compound":{"$all":[1,2,4]}},{"a_compound":{"$elemMatch":{"$ne":4}}},{"a_idx":{"$exists":true}}]}],"i_compound":{"$exists":true},"z_idx":{"$exists":true}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_compound_1","indexBounds":{"h_compound":["[MinKey, 4.0)","(4.0, 7.0)","(7.0, 9.0)","(9.0, MaxKey]"]}}},
    "keys" :  97003,
    "docs" :  97000,
    "sorts":      0,
    "plans":     13,
    "rows" :  97000},

{">>>pipeline": [{"$match":{"$or":[{"i_compound":{"$nin":[4,18]}},{"a_compound":{"$exists":false}},{"a_compound":{"$elemMatch":{"$nin":[7,12,16]}}},{"a_compound":{"$exists":false}}],"a_compound":{"$lt":18}}},{"$sort":{"c_idx":1}},{"$skip":63}],
    "winningPlan": {"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     13,
    "rows" :  99937},

{">>>pipeline": [{"$match":{"$and":[{"$or":[{"a_idx":{"$in":[20,6,6]}},{"a_compound":{"$all":[3,20,4]}},{"a_compound":{"$nin":[16,20,14]}}]},{"k_compound":{"$ne":9}}],"$or":[{"$or":[{"$or":[{"h_idx":{"$nin":[3,1]}},{"a_noidx":{"$gt":2}}]},{"i_noidx":{"$exists":true}}]},{"$or":[{"a_idx":{"$elemMatch":{"$exists":false}}},{"h_noidx":{"$exists":false}},{"c_compound":{"$nin":[13,10]}},{"h_idx":{"$exists":true}}]},{"$and":[{"a_compound":{"$in":[8,19]}},{"a_idx":{"$exists":true}}]}]}},{"$sort":{"c_idx":-1}},{"$skip":20},{"$project":{"_id":0,"a_compound":1,"a_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MaxKey, MinKey]"]}}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     12,
    "rows" :  98889},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$lt":13}},{"d_compound":{"$lt":16}},{"$or":[{"a_compound":{"$elemMatch":{"$nin":[16,5]}}},{"z_idx":{"$gte":1}},{"a_compound":{"$all":[12,18]}}]}],"a_idx":{"$lt":7}}},{"$sort":{"d_idx":-1}},{"$limit":211},{"$skip":27},{"$project":{"_id":0,"a_noidx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MaxKey, MinKey]"]}}}}}},
    "keys" :    212,
    "docs" :    212,
    "sorts":      0,
    "plans":     15,
    "rows" :    184},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$eq":11}},{"k_compound":{"$exists":true}},{"a_compound":{"$elemMatch":{"$exists":false,"$lte":20}}},{"a_compound":{"$in":[15,18]}}],"d_compound":{"$lte":9}}},{"$limit":241},{"$project":{"_id":0,"a_compound":1,"k_noidx":1,"z_idx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[11.0, 11.0]","[15.0, 15.0]","[18.0, 18.0]"]}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1_a_compound_1","indexBounds":{"k_compound":["[MinKey, MaxKey]"],"a_compound":["[MinKey, MaxKey]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1_i_compound_1","indexBounds":{"a_compound":[],"i_compound":["[MinKey, MaxKey]"]}}}]}}}},
    "keys" :    241,
    "docs" :    241,
    "sorts":      0,
    "plans":     12,
    "rows" :    241},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$all":[2,14]}},{"z_idx":{"$exists":true}},{"a_idx":{"$all":[19,14,13]}}]}},{"$sort":{"h_idx":1}}],
    "winningPlan": {"stage":"SUBPLAN","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     11,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$all":[13,7,15]}},{"k_compound":{"$ne":6}}],"a_idx":{"$lte":14}}},{"$limit":243},{"$project":{"_id":0,"a_compound":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[-inf, 14.0]"]}}}}},
    "keys" :    243,
    "docs" :    243,
    "sorts":      0,
    "plans":     10,
    "rows" :    243},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[11,17,8,7,12]}},{"a_noidx":{"$eq":13}}],"a_idx":{"$in":[14,11,4,19]},"k_idx":{"$exists":true}}},{"$project":{"_id":0,"a_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[4.0, 4.0]","[11.0, 11.0]","[14.0, 14.0]","[19.0, 19.0]"]}}}},
    "keys" :  20102,
    "docs" :  18945,
    "sorts":      0,
    "plans":     12,
    "rows" :  18883},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$nin":[3,8]}},{"a_compound":{"$in":[9,5,19]}},{"a_noidx":{"$in":[11,1,18]}}],"$or":[{"i_compound":{"$ne":6}},{"a_compound":{"$all":[11,8,1]}},{"$and":[{"k_idx":{"$ne":2}},{"a_noidx":{"$in":[2,1]}}]},{"z_idx":{"$gte":10}}],"c_compound":{"$nin":[19,11,19]}}},{"$sort":{"c_idx":-1}},{"$project":{"_id":0,"a_compound":1,"a_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     16,
    "rows" :  19964},

{">>>pipeline": [{"$match":{"$and":[{"$or":[{"a_idx":{"$lt":5}},{"a_compound":{"$elemMatch":{"$ne":4}}},{"a_compound":{"$elemMatch":{"$eq":4}}},{"a_compound":{"$all":[13,17,16]}}]},{"c_idx":{"$in":[8,1]}}],"h_noidx":{"$in":[7,15]}}},{"$sort":{"i_idx":1}},{"$project":{"_id":0,"a_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     11,
    "rows" :   2000},

{">>>pipeline": [{"$match":{"$and":[{"$or":[{"$nor":[{"z_compound":{"$exists":true}},{"a_idx":{"$elemMatch":{"$gt":5}}},{"a_noidx":{"$all":[9,15]}}]},{"i_compound":{"$gt":7}},{"a_idx":{"$elemMatch":{"$in":[12,18]}}},{"h_idx":{"$eq":19}},{"$or":[{"z_compound":{"$eq":10}},{"$or":[{"a_compound":{"$lte":12}},{"$or":[{"d_compound":{"$in":[16,10,8]}},{"a_compound":{"$ne":17}}]},{"a_idx":{"$gte":15}}]}]}]},{"$or":[{"k_compound":{"$exists":false}},{"a_idx":{"$ne":20}},{"a_idx":{"$all":[4,4,7,9]}},{"k_compound":{"$lt":8}}]}],"$or":[{"a_idx":{"$in":[6,14,1]}},{"$and":[{"a_noidx":{"$elemMatch":{"$nin":[20,1,11]}}},{"a_compound":{"$all":[4,10]}}]},{"a_compound":{"$gte":15}}],"d_idx":{"$nin":[14,17]}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[1.0, 1.0]","[6.0, 6.0]","[14.0, 14.0]"]}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1_i_compound_1","indexBounds":{"a_compound":["[4.0, 4.0]"],"i_compound":["[MinKey, MaxKey]"]}}},{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[15.0, inf]"]}}]}},
    "keys" : 347476,
    "docs" : 117087,
    "sorts":      0,
    "plans":     20,
    "rows" :  98993},

{">>>pipeline": [{"$match":{"$nor":[{"k_compound":{"$nin":[4,11,6]}},{"a_compound":{"$all":[16,7]}},{"a_noidx":{"$elemMatch":{"$in":[9,17,10]}}}],"c_compound":{"$exists":true}}},{"$sort":{"d_idx":-1}},{"$project":{"a_idx":1,"a_noidx":1,"h_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[4.0, 4.0]","[6.0, 6.0]","[11.0, 11.0]"]}}}}},
    "keys" :    303,
    "docs" :    300,
    "sorts":   2011,
    "plans":     14,
    "rows" :    300},

{">>>pipeline": [{"$match":{"$or":[{"k_compound":{"$lt":13}},{"i_compound":{"$nin":[13,11]}},{"a_idx":{"$elemMatch":{"$in":[14,4]}}},{"a_compound":{"$all":[17,2]}}],"a_compound":{"$lt":18},"z_compound":{"$in":[4,13]}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_compound_1","indexBounds":{"z_compound":["[4.0, 4.0]","[13.0, 13.0]"]}}},
    "keys" :   7904,
    "docs" :   7903,
    "sorts":      0,
    "plans":     13,
    "rows" :   7903},

{">>>pipeline": [{"$match":{"$nor":[{"$nor":[{"a_compound":{"$lt":8}},{"a_idx":{"$all":[5,2,19,4]}}]},{"d_idx":{"$eq":11}}],"h_compound":{"$gte":20}}},{"$sort":{"a_idx":1}},{"$limit":236}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}}},
    "keys" :    296,
    "docs" :    296,
    "sorts":      0,
    "plans":     13,
    "rows" :    236},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[19,11,4]}},{"a_compound":{"$exists":false}}],"k_noidx":{"$gte":8}}},{"$sort":{"a_idx":-1,"k_idx":-1}},{"$limit":255},{"$skip":44}],
    "winningPlan": {"stage":"SKIP","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[MinKey, MaxKey]"]}}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts": 648893,
    "plans":     10,
    "rows" :    211},

{">>>pipeline": [{"$match":{"$and":[{"$or":[{"k_compound":{"$ne":3}},{"i_compound":{"$in":[3,6]}},{"a_compound":{"$exists":false}}]},{"$or":[{"a_idx":{"$all":[14,13,17]}},{"a_idx":{"$exists":true}},{"k_compound":{"$nin":[11,5]}}]}],"k_compound":{"$exists":true}}},{"$skip":55},{"$project":{"a_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[MinKey, MaxKey]"]}}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     20,
    "rows" :  99846},

{">>>pipeline": [{"$match":{"$or":[{"d_compound":{"$exists":true}},{"h_compound":{"$gte":10}},{"k_compound":{"$exists":false}},{"i_compound":{"$nin":[10,2]}}],"i_noidx":{"$nin":[7,4]}}},{"$sort":{"c_idx":1}},{"$project":{"c_compound":1,"c_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      9,
    "rows" :  99998},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[2,4]}},{"a_compound":{"$elemMatch":{"$exists":true,"$in":[20,2,9,18],"$nin":[20,17]}}},{"z_noidx":{"$exists":false}}],"k_compound":{"$lt":13}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[-inf, 13.0)"]}}},
    "keys" :   1300,
    "docs" :   1300,
    "sorts":      0,
    "plans":     11,
    "rows" :    682},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$all":[14,6,15,1]}},{"a_idx":{"$gt":7}}],"a_compound":{"$lte":15}}},{"$sort":{"k_idx":-1,"z_idx":-1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[-inf, 15.0]"]}}}},
    "keys" : 195941,
    "docs" : 100000,
    "sorts": 1251184,
    "plans":     11,
    "rows" :  99992},

{">>>pipeline": [{"$match":{"$or":[{"c_compound":{"$exists":true}},{"a_compound":{"$in":[9,5,2,5]}},{"k_idx":{"$gt":10}},{"d_idx":{"$exists":false}}],"a_noidx":{"$gt":18},"z_compound":{"$in":[17,20,1]}}},{"$sort":{"c_idx":1,"h_idx":1}},{"$limit":162}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[null, null]"]}}},{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["(10.0, inf]"]}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_compound_1_d_compound_1","indexBounds":{"c_compound":["[MinKey, MaxKey]"],"d_compound":["[MinKey, MaxKey]"]}}},{"stage":"IXSCAN","indexName":"a_compound_1_i_compound_1","indexBounds":{"a_compound":["[2.0, 2.0]","[5.0, 5.0]","[9.0, 9.0]"],"i_compound":["[MinKey, MaxKey]"]}}]}}},
    "keys" : 260236,
    "docs" : 200000,
    "sorts": 233885,
    "plans":      8,
    "rows" :    162},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[10,3,1]}},{"a_compound":{"$eq":14}}],"a_compound":{"$in":[1,13,8]}}},{"$sort":{"d_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     13,
    "rows" :  50935},

{">>>pipeline": [{"$match":{"$nor":[{"c_idx":{"$gte":7}},{"h_idx":{"$ne":7}},{"h_compound":{"$lt":6}},{"a_compound":{"$eq":9}}],"$or":[{"k_compound":{"$exists":false}},{"a_idx":{"$all":[6,7]}},{"z_idx":{"$nin":[5,12,11,16]}},{"$or":[{"a_idx":{"$elemMatch":{"$eq":12}}},{"d_compound":{"$gt":8}}]}],"a_idx":{"$elemMatch":{"$exists":true,"$lt":20,"$ne":14}}}},{"$limit":241},{"$project":{"_id":0,"k_noidx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[7.0, 7.0]"]}}}}},
    "keys" :    244,
    "docs" :    244,
    "sorts":      0,
    "plans":     16,
    "rows" :    241},

{">>>pipeline": [{"$match":{"$or":[{"c_idx":{"$exists":false}},{"k_compound":{"$exists":true}},{"c_compound":{"$gt":2}},{"a_compound":{"$exists":false}}],"z_compound":{"$exists":true}}},{"$sort":{"c_idx":-1}},{"$limit":84}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MaxKey, MinKey]"]}}}},
    "keys" :     84,
    "docs" :     84,
    "sorts":      0,
    "plans":     13,
    "rows" :     84},

{">>>pipeline": [{"$match":{"$nor":[{"k_compound":{"$in":[6,2]}},{"a_compound":{"$all":[15,16,2,3]}},{"c_idx":{"$gt":9}}],"a_idx":{"$elemMatch":{"$gt":8}},"z_compound":{"$nin":[7,19,18]}}},{"$sort":{"k_idx":1,"z_idx":1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1_a_compound_1","indexBounds":{"k_compound":["[MinKey, 2.0)","(2.0, 6.0)","(6.0, MaxKey]"],"a_compound":["[MinKey, MaxKey]"]}}}},
    "keys" : 468374,
    "docs" :  99800,
    "sorts": 1244672,
    "plans":     16,
    "rows" :  99510},

{">>>pipeline": [{"$match":{"$nor":[{"h_compound":{"$exists":false}},{"a_idx":{"$elemMatch":{"$exists":false,"$nin":[7,10]}}}],"$or":[{"k_compound":{"$exists":true}},{"a_compound":{"$all":[16,10]}},{"a_idx":{"$elemMatch":{"$gt":13}}}],"a_idx":{"$nin":[7,14,15]},"d_compound":{"$in":[12,18,1]}}},{"$skip":2},{"$project":{"a_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_compound_1_k_compound_1","indexBounds":{"d_compound":["[1.0, 1.0]","[12.0, 12.0]","[18.0, 18.0]"],"k_compound":["[MinKey, MaxKey]"]}}}}},
    "keys" :  10001,
    "docs" :  10000,
    "sorts":      0,
    "plans":     13,
    "rows" :   9973},

{">>>pipeline": [{"$match":{"$nor":[{"d_compound":{"$exists":false}},{"a_compound":{"$all":[11,8,12,15]}}],"a_noidx":{"$exists":true},"k_compound":{"$eq":6}}},{"$limit":89}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[6.0, 6.0]"]}}}},
    "keys" :     89,
    "docs" :     89,
    "sorts":      0,
    "plans":     14,
    "rows" :     89},

{">>>pipeline": [{"$match":{"$and":[{"z_noidx":{"$nin":[10,18,10]}},{"a_compound":{"$nin":[11,12,16,4]}},{"z_compound":{"$nin":[12,16]}}],"$nor":[{"a_compound":{"$all":[13,5,9,3]}},{"c_compound":{"$exists":false}}],"c_compound":{"$exists":true}}},{"$sort":{"a_idx":-1,"c_idx":-1}},{"$limit":109},{"$project":{"_id":0,"i_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[MinKey, 4.0)","(4.0, 11.0)","(11.0, 12.0)","(12.0, 16.0)","(16.0, MaxKey]"]}}}}},
    "keys" : 448847,
    "docs" : 100000,
    "sorts": 456059,
    "plans":     16,
    "rows" :    109},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$exists":true}},{"$and":[{"i_compound":{"$nin":[17,8,13]}},{"z_noidx":{"$eq":2}}]},{"i_compound":{"$eq":2}}],"a_compound":{"$gte":10}}},{"$limit":131},{"$project":{"c_compound":1,"d_compound":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[10.0, inf]"]}}}}},
    "keys" :    131,
    "docs" :    131,
    "sorts":      0,
    "plans":     11,
    "rows" :    131},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$lte":9}},{"$or":[{"a_idx":{"$all":[15,10]}},{"a_compound":{"$lte":14}}]},{"h_idx":{"$eq":15}}]}},{"$sort":{"i_idx":-1}},{"$limit":139}],
    "winningPlan": {"stage":"SUBPLAN","inputStage":{"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MaxKey, MinKey]"]}}}}},
    "keys" :    139,
    "docs" :    139,
    "sorts":      0,
    "plans":     11,
    "rows" :    139},

{">>>pipeline": [{"$match":{"$or":[{"i_compound":{"$gte":4}},{"a_compound":{"$all":[17,5]}},{"a_compound":{"$all":[8,8]}}]}},{"$sort":{"z_idx":1}},{"$project":{"a_idx":1}}],
    "winningPlan": {"stage":"SUBPLAN","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     10,
    "rows" :  99996},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$ne":16}},{"$nor":[{"a_idx":{"$exists":false}},{"a_idx":{"$lt":2}},{"k_idx":{"$eq":14}},{"a_compound":{"$all":[17,12,8]}}]}],"a_idx":{"$exists":true},"c_compound":{"$nin":[11,7,18,17]}}},{"$sort":{"z_idx":1}},{"$project":{"d_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     16,
    "rows" :  48604},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$all":[14,16]}},{"a_compound":{"$elemMatch":{"$in":[3,18,11,2]}}}],"c_idx":{"$lt":10},"h_noidx":{"$gte":16}}},{"$sort":{"c_idx":1}},{"$project":{"_id":0,"z_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[-inf, 10.0)"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     10,
    "rows" :  50129},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$elemMatch":{"$gt":14}}},{"k_idx":{"$exists":false}},{"a_idx":{"$all":[18,12,6]}},{"z_idx":{"$eq":3}},{"a_compound":{"$all":[15,11,7,4]}}],"a_compound":{"$in":[15,11]}}},{"$sort":{"d_idx":1}},{"$limit":28}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[11.0, 11.0]","[15.0, 15.0]"]}}}},
    "keys" :   2006,
    "docs" :   2004,
    "sorts":   8677,
    "plans":     12,
    "rows" :     28},

{">>>pipeline": [{"$match":{"$and":[{"a_noidx":{"$lte":10}},{"$and":[{"c_compound":{"$lte":7}},{"z_compound":{"$nin":[19,9]}}]}]}},{"$sort":{"h_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :  99984},

{">>>pipeline": [{"$match":{"$or":[{"$and":[{"a_noidx":{"$exists":false}},{"d_idx":{"$in":[18,5,17]}}]},{"$or":[{"k_compound":{"$exists":true}},{"a_idx":{"$all":[6,3,8,4]}},{"a_idx":{"$all":[4,1,12]}}]}],"a_idx":{"$lt":19}}},{"$sort":{"k_idx":1}},{"$project":{"_id":0,"c_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     12,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$and":[{"$or":[{"c_idx":{"$gt":3}},{"a_compound":{"$nin":[2,8]}},{"c_idx":{"$in":[10,20]}},{"$or":[{"a_compound":{"$all":[4,15,6]}},{"a_idx":{"$in":[12,15,15,16]}},{"k_compound":{"$exists":false}},{"a_compound":{"$all":[14,6,5]}}]}]},{"h_noidx":{"$in":[10,3]}}],"$or":[{"d_compound":{"$lte":16}},{"i_compound":{"$exists":false}}]}},{"$sort":{"d_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     14,
    "rows" :   1385},

{">>>pipeline": [{"$match":{"$or":[{"c_compound":{"$in":[5,11]}},{"$and":[{"h_noidx":{"$exists":false}},{"i_compound":{"$in":[14,12,13]}}]},{"z_compound":{"$nin":[7,2]}}],"a_compound":{"$nin":[9,2,17]}}},{"$sort":{"d_idx":-1,"i_idx":1,"k_idx":-1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"IXSCAN","indexName":"c_compound_1","indexBounds":{"c_compound":["[5.0, 5.0]","[11.0, 11.0]"]}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1_i_compound_1","indexBounds":{"a_compound":["[MinKey, 2.0)","(2.0, 9.0)","(9.0, 17.0)","(17.0, MaxKey]"],"i_compound":["[12.0, 12.0]","[13.0, 13.0]","[14.0, 14.0]"]}}},{"stage":"IXSCAN","indexName":"z_compound_1_c_compound_1","indexBounds":{"z_compound":["[MinKey, 2.0)","(2.0, 7.0)","(7.0, MaxKey]"],"c_compound":["[MinKey, MaxKey]"]}}]}}},
    "keys" : 167783,
    "docs" :  67769,
    "sorts": 637512,
    "plans":     12,
    "rows" :  53619},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$all":[7,19,17]}},{"i_compound":{"$exists":true}}],"a_compound":{"$lte":8}}},{"$sort":{"k_idx":1,"z_idx":-1}},{"$limit":168}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[-inf, 8.0]"]}}}},
    "keys" : 179917,
    "docs" :  99995,
    "sorts": 612366,
    "plans":     12,
    "rows" :    168},

{">>>pipeline": [{"$match":{"$or":[{"$and":[{"a_idx":{"$all":[8,16,9,19,8,6]}},{"$or":[{"a_compound":{"$all":[10,17,1,16]}},{"a_noidx":{"$nin":[20,6]}},{"a_noidx":{"$all":[3,9]}},{"a_compound":{"$all":[10,2,20]}},{"a_idx":{"$ne":9}}]}]},{"i_compound":{"$nin":[1,8,10]}}],"a_compound":{"$elemMatch":{"$exists":true,"$gt":8}}}},{"$skip":76}],
    "winningPlan": {"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["(8.0, inf]"]}}}},
    "keys" : 289024,
    "docs" :  99991,
    "sorts":      0,
    "plans":     12,
    "rows" :  99914},

{">>>pipeline": [{"$match":{"$and":[{"$or":[{"k_idx":{"$in":[11,17]}},{"d_compound":{"$lt":10}},{"a_compound":{"$all":[6,5]}}]},{"c_compound":{"$ne":14}}]}},{"$sort":{"c_idx":-1}},{"$limit":152}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MaxKey, MinKey]"]}}}},
    "keys" :    152,
    "docs" :    152,
    "sorts":      0,
    "plans":     12,
    "rows" :    152},

{">>>pipeline": [{"$match":{"$nor":[{"$or":[{"a_compound":{"$all":[17,16,19,20]}},{"z_idx":{"$exists":false}}]},{"z_idx":{"$exists":false}},{"z_compound":{"$exists":false}}],"a_compound":{"$nin":[14,16]}}},{"$sort":{"a_idx":-1,"k_idx":-1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[MinKey, 14.0)","(14.0, 16.0)","(16.0, MaxKey]"]}}}},
    "keys" : 466943,
    "docs" : 100000,
    "sorts": 1224287,
    "plans":     15,
    "rows" :  98000},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$in":[9,10,4]}},{"a_compound":{"$all":[13,17]}}],"a_idx":{"$in":[20,17,2]}}},{"$project":{"_id":0,"a_noidx":1,"h_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[2.0, 2.0]","[17.0, 17.0]","[20.0, 20.0]"]}}}},
    "keys" :  40795,
    "docs" :  40146,
    "sorts":      0,
    "plans":      7,
    "rows" :  32380},

{">>>pipeline": [{"$match":{"$and":[{"$and":[{"a_noidx":{"$elemMatch":{"$ne":2}}},{"k_compound":{"$gte":2}},{"h_noidx":{"$lt":5}}]},{"a_compound":{"$lte":18}},{"a_idx":{"$exists":true}}],"a_compound":{"$elemMatch":{"$exists":true}}}},{"$sort":{"k_idx":-1}},{"$project":{"h_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      8,
    "rows" :   4800},

{">>>pipeline": [{"$match":{"$and":[{"c_idx":{"$lt":12}},{"$and":[{"$or":[{"a_idx":{"$all":[10,14,1]}},{"a_compound":{"$in":[10,18,9]}},{"d_compound":{"$exists":true}}]},{"d_noidx":{"$lt":13}}]}],"a_idx":{"$all":[16,6]}}},{"$sort":{"h_idx":1,"k_idx":-1}},{"$limit":227},{"$project":{"z_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[16.0, 16.0]"]}}}}},
    "keys" :   1000,
    "docs" :   1000,
    "sorts":   6425,
    "plans":     14,
    "rows" :    227},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$all":[19,15]}},{"a_compound":{"$lt":3}}],"z_noidx":{"$in":[2,2,1]}}},{"$sort":{"d_idx":-1}},{"$limit":40}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MaxKey, MinKey]"]}}}},
    "keys" :     60,
    "docs" :     60,
    "sorts":      0,
    "plans":      7,
    "rows" :     40},

{">>>pipeline": [{"$match":{"$or":[{"c_compound":{"$exists":true}},{"a_compound":{"$elemMatch":{"$nin":[10,13]}}},{"$and":[{"z_noidx":{"$nin":[7,10,4]}},{"i_compound":{"$in":[6,5,17]}}]},{"h_idx":{"$in":[3,6,7]}},{"z_idx":{"$in":[13,1]}}],"a_compound":{"$elemMatch":{"$exists":true}}}},{"$project":{"_id":0,"a_noidx":1,"c_noidx":1,"d_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[1.0, 1.0]","[13.0, 13.0]"]}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_compound_1_z_compound_1","indexBounds":{"i_compound":["[5.0, 5.0]","[6.0, 6.0]","[17.0, 17.0]"],"z_compound":["[MinKey, MaxKey]"]}}},{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[3.0, 3.0]","[6.0, 6.0]","[7.0, 7.0]"]}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_compound_1_d_compound_1","indexBounds":{"c_compound":["[MinKey, MaxKey]"],"d_compound":["[MinKey, MaxKey]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1_i_compound_1","indexBounds":{"a_compound":["[MinKey, 10.0)","(10.0, 13.0)","(13.0, MaxKey]"],"i_compound":["[MinKey, MaxKey]"]}}}]}}},
    "keys" : 608368,
    "docs" : 300003,
    "sorts":      0,
    "plans":     12,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$ne":13}},{"$and":[{"a_compound":{"$all":[10,3,19]}},{"a_idx":{"$all":[4,12,5,19]}},{"i_compound":{"$ne":7}},{"a_noidx":{"$all":[2,11]}}]}],"a_compound":{"$elemMatch":{"$in":[6,3],"$lt":9,"$nin":[9,9]}},"a_noidx":{"$eq":5},"k_compound":{"$nin":[11,20]}}},{"$sort":{"k_idx":-1}},{"$project":{"_id":0,"a_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     15,
    "rows" :   2352},

{">>>pipeline": [{"$match":{"$or":[{"z_idx":{"$ne":6}},{"a_idx":{"$all":[6,18,2]}},{"a_compound":{"$all":[9,8,17,15]}}]}},{"$sort":{"h_idx":-1}},{"$skip":78}],
    "winningPlan": {"stage":"SUBPLAN","inputStage":{"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MaxKey, MinKey]"]}}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     10,
    "rows" :  98949},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$exists":false}},{"z_compound":{"$exists":true}},{"a_compound":{"$lte":15}}],"a_compound":{"$elemMatch":{"$in":[2,14,3]}}}},{"$sort":{"a_idx":-1,"d_idx":-1,"k_idx":-1}},{"$limit":237}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[-inf, 15.0]"]}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_compound_1_c_compound_1","indexBounds":{"z_compound":["[MinKey, MaxKey]"],"c_compound":["[MinKey, MaxKey]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1_i_compound_1","indexBounds":{"a_compound":["[null, null]"],"i_compound":["[MinKey, MaxKey]"]}}}]}}},
    "keys" : 295941,
    "docs" : 200000,
    "sorts": 388983,
    "plans":     10,
    "rows" :    237},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$nin":[14,13]}},{"a_idx":{"$all":[7,1,16,5]}}],"a_idx":{"$eq":16}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[16.0, 16.0]"]}}},
    "keys" :   1000,
    "docs" :   1000,
    "sorts":      0,
    "plans":      9,
    "rows" :   1000},

{">>>pipeline": [{"$match":{"$nor":[{"z_compound":{"$exists":false}},{"a_compound":{"$all":[9,13,8,9]}}],"a_compound":{"$elemMatch":{"$gte":19}}}},{"$sort":{"i_idx":-1,"k_idx":1}},{"$limit":223},{"$skip":66},{"$project":{"a_noidx":1,"k_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SKIP","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_compound_1","indexBounds":{"z_compound":["[MinKey, MaxKey]"]}}}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts": 640595,
    "plans":     12,
    "rows" :    157},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$all":[9,7]}},{"a_idx":{"$all":[1,4]}}],"i_compound":{"$lte":11}}},{"$sort":{"c_idx":-1,"i_idx":1}},{"$limit":12}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_compound_1","indexBounds":{"i_compound":["[-inf, 11.0]"]}}}},
    "keys" :     12,
    "docs" :     12,
    "sorts":      1,
    "plans":     11,
    "rows" :      1},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$elemMatch":{"$ne":14}}},{"a_compound":{"$all":[8,14]}}],"a_compound":{"$elemMatch":{"$exists":true}},"a_noidx":{"$in":[5,12]},"d_idx":{"$lt":14}}},{"$limit":27}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[-inf, 14.0)"]}}}},
    "keys" :    956,
    "docs" :    956,
    "sorts":      0,
    "plans":     12,
    "rows" :     27},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$nin":[20,14,1]}},{"z_compound":{"$nin":[8,11,12]}},{"a_idx":{"$all":[16,4,5,14,7]}}]}},{"$sort":{"i_idx":-1}},{"$project":{"_id":0,"a_noidx":1}}],
    "winningPlan": {"stage":"SUBPLAN","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MaxKey, MinKey]"]}}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     11,
    "rows" :  99985},

{">>>pipeline": [{"$match":{"$or":[{"$and":[{"a_compound":{"$exists":false}},{"a_idx":{"$exists":false}}]},{"d_compound":{"$lte":18}}],"k_compound":{"$nin":[9,11,15]}}},{"$sort":{"d_idx":1,"z_idx":-1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1_a_compound_1","indexBounds":{"k_compound":["[MinKey, 9.0)","(9.0, 11.0)","(11.0, 15.0)","(15.0, MaxKey]"],"a_compound":["[MinKey, MaxKey]"]}}}},
    "keys" : 467886,
    "docs" :  99700,
    "sorts": 1247239,
    "plans":     11,
    "rows" :  99700},

{">>>pipeline": [{"$match":{"$and":[{"h_idx":{"$lt":11}},{"a_idx":{"$elemMatch":{"$exists":true,"$in":[9,5]}}},{"a_compound":{"$gt":3}}],"$or":[{"a_compound":{"$all":[4,15,10,12,19]}},{"a_compound":{"$all":[9,18,17,2]}},{"a_compound":{"$nin":[14,4,6]}}],"z_idx":{"$nin":[17,3,4,12,11]}}},{"$sort":{"k_idx":1}},{"$limit":114},{"$project":{"_id":0,"a_noidx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" :    932,
    "docs" :    932,
    "sorts":      0,
    "plans":     15,
    "rows" :    114},

{">>>pipeline": [{"$match":{"$or":[{"d_compound":{"$ne":7}},{"a_compound":{"$elemMatch":{"$nin":[6,16]}}},{"k_compound":{"$gt":7}},{"z_compound":{"$in":[13,11,13,10]}}]}},{"$sort":{"z_idx":1}},{"$limit":229}],
    "winningPlan": {"stage":"SUBPLAN","inputStage":{"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" :    229,
    "docs" :    229,
    "sorts":      0,
    "plans":     11,
    "rows" :    229},

{">>>pipeline": [{"$match":{"$or":[{"c_compound":{"$lt":7}},{"a_idx":{"$all":[12,2,17]}},{"a_idx":{"$all":[5,18]}}]}},{"$sort":{"c_idx":1}}],
    "winningPlan": {"stage":"SUBPLAN","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     11,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$nin":[16,12,19]}},{"a_compound":{"$nin":[1,4,2,6]}}],"$nor":[{"$and":[{"a_compound":{"$all":[5,10]}},{"i_compound":{"$in":[9,17,2,14]}}]},{"i_noidx":{"$in":[6,2,5]}},{"h_noidx":{"$exists":false}}],"a_idx":{"$elemMatch":{"$exists":true}}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":     15,
    "rows" :  12234},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[4,11]}},{"z_compound":{"$exists":false}}],"a_compound":{"$nin":[5,5,17]}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[MinKey, 5.0)","(5.0, 17.0)","(17.0, MaxKey]"]}}},
    "keys" : 455415,
    "docs" : 100000,
    "sorts":      0,
    "plans":      8,
    "rows" :  86420},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[12,5,14]}},{"a_compound":{"$gte":6}},{"k_compound":{"$exists":false}}],"z_noidx":{"$nin":[5,18]}}},{"$sort":{"a_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":     15,
    "rows" :      6},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$all":[7,17]}},{"a_compound":{"$all":[17,14]}},{"c_compound":{"$lt":16}}],"a_compound":{"$lte":14},"h_noidx":{"$in":[8,6]}}},{"$sort":{"h_idx":-1,"i_idx":-1}},{"$project":{"h_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[-inf, 14.0]"]}}}}},
    "keys" : 194941,
    "docs" : 100000,
    "sorts":  17202,
    "plans":     11,
    "rows" :   2000},

{">>>pipeline": [{"$match":{"$and":[{"$or":[{"a_compound":{"$all":[1,6]}},{"a_idx":{"$all":[14,9,3]}}]},{"k_compound":{"$lte":18}}]}},{"$project":{"i_compound":1,"z_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[-inf, 18.0]"]}}}},
    "keys" :   1900,
    "docs" :   1900,
    "sorts":      0,
    "plans":     11,
    "rows" :     84},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$lte":4}},{"a_compound":{"$elemMatch":{"$exists":true}}},{"$or":[{"k_compound":{"$exists":true}},{"$or":[{"a_idx":{"$lte":19}},{"c_idx":{"$nin":[16,11,4,10]}},{"a_idx":{"$all":[2,8,16]}}]}]},{"a_idx":{"$all":[6,12,8]}}],"a_noidx":{"$elemMatch":{"$ne":7}},"k_compound":{"$lte":14}}},{"$sort":{"c_idx":1}},{"$limit":184},{"$project":{"_id":0,"c_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[-inf, 14.0]"]}}}}},
    "keys" :   1500,
    "docs" :   1500,
    "sorts":   9322,
    "plans":     13,
    "rows" :    184},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[13,13,5]}},{"d_idx":{"$gte":17}}],"a_idx":{"$ne":17}}},{"$sort":{"h_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      7,
    "rows" :  98977},

{">>>pipeline": [{"$match":{"$and":[{"c_compound":{"$lte":14}},{"a_compound":{"$nin":[6,8]}},{"a_compound":{"$in":[16,15,14]}},{"a_idx":{"$in":[14,11]}}],"a_idx":{"$nin":[17,10]}}},{"$sort":{"a_idx":1,"c_idx":1}},{"$limit":55}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[11.0, 11.0]","[14.0, 14.0]"]}}}},
    "keys" :   2006,
    "docs" :   2003,
    "sorts":   4952,
    "plans":      8,
    "rows" :     55},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$in":[11,15,9]}},{"a_noidx":{"$elemMatch":{"$ne":15,"$nin":[20,15,13]}}},{"$nor":[{"a_compound":{"$all":[19,12,20]}},{"i_compound":{"$in":[8,16]}},{"a_compound":{"$exists":false}}]}],"a_idx":{"$in":[3,1]}}},{"$sort":{"k_idx":-1}},{"$project":{"_id":0,"z_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     16,
    "rows" :   7053},

{">>>pipeline": [{"$match":{"$nor":[{"z_compound":{"$in":[19,16,4]}},{"k_compound":{"$ne":1}}],"a_idx":{"$nin":[13,4]}}},{"$sort":{"h_idx":1}},{"$limit":117}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[1.0, 1.0]"]}}}},
    "keys" :    100,
    "docs" :    100,
    "sorts":    528,
    "plans":      6,
    "rows" :     95},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$nin":[15,2]}},{"$or":[{"a_compound":{"$all":[15,8,10]}},{"i_compound":{"$in":[10,4]}}]}],"a_compound":{"$elemMatch":{"$exists":true,"$nin":[19,11]}},"a_noidx":{"$exists":true},"i_compound":{"$ne":15},"k_compound":{"$lt":3}}},{"$sort":{"a_idx":-1,"k_idx":-1,"z_idx":-1}},{"$project":{"_id":0,"a_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[-inf, 3.0)"]}}}}},
    "keys" :    300,
    "docs" :    300,
    "sorts":    804,
    "plans":     15,
    "rows" :    136},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$exists":true}},{"a_idx":{"$all":[3,7,2,11]}}],"i_compound":{"$in":[18,1]}}},{"$limit":36}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_compound_1","indexBounds":{"i_compound":["[1.0, 1.0]","[18.0, 18.0]"]}}}},
    "keys" :      4,
    "docs" :      2,
    "sorts":      0,
    "plans":     12,
    "rows" :      2},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$elemMatch":{"$exists":true}}},{"a_compound":{"$lte":8}},{"a_idx":{"$all":[12,8]}}],"a_compound":{"$elemMatch":{"$lt":5,"$lte":20,"$ne":5}}}},{"$skip":48},{"$project":{"_id":0,"a_idx":1,"a_noidx":1,"h_idx":1,"i_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[-inf, 5.0)"]}}}}},
    "keys" : 136178,
    "docs" :  97873,
    "sorts":      0,
    "plans":     12,
    "rows" :  97825},

{">>>pipeline": [{"$match":{"$nor":[{"h_compound":{"$nin":[8,18,7]}},{"$and":[{"i_idx":{"$nin":[3,16]}},{"$and":[{"a_idx":{"$in":[10,11]}},{"a_compound":{"$all":[11,3,8,17]}},{"h_compound":{"$in":[1,13,19,6,15]}}]},{"h_idx":{"$exists":true}}]}],"d_noidx":{"$exists":true}}},{"$project":{"_id":0,"a_compound":1,"c_idx":1,"k_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_compound_1","indexBounds":{"h_compound":["[7.0, 7.0]","[8.0, 8.0]","[18.0, 18.0]"]}}}},
    "keys" :   3002,
    "docs" :   3000,
    "sorts":      0,
    "plans":     11,
    "rows" :   3000},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$all":[14,6,1,5]}},{"a_compound":{"$elemMatch":{"$lte":16}}},{"a_compound":{"$all":[7,18,20,17]}}],"a_compound":{"$elemMatch":{"$gte":8}}}},{"$sort":{"z_idx":1}},{"$limit":206},{"$skip":51},{"$project":{"_id":0,"a_noidx":1,"i_compound":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MinKey, MaxKey]"]}}}}}},
    "keys" :    208,
    "docs" :    208,
    "sorts":      0,
    "plans":     12,
    "rows" :    155},

{">>>pipeline": [{"$match":{"$nor":[{"a_noidx":{"$exists":false}},{"a_compound":{"$all":[9,16,15,18]}}],"i_compound":{"$exists":true}}},{"$sort":{"a_idx":-1,"h_idx":-1}},{"$limit":103}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_compound_1","indexBounds":{"i_compound":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts": 563473,
    "plans":     12,
    "rows" :    103},

{">>>pipeline": [{"$match":{"$and":[{"a_idx":{"$elemMatch":{"$exists":true}}},{"c_compound":{"$lt":2}},{"a_noidx":{"$exists":true}}],"$or":[{"a_compound":{"$exists":true}},{"a_compound":{"$all":[5,13]}}]}},{"$sort":{"a_idx":-1,"c_idx":1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts": 1251293,
    "plans":     12,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$nor":[{"c_idx":{"$in":[9,6,2]}},{"$nor":[{"a_compound":{"$in":[20,6]}},{"a_compound":{"$in":[10,8]}}]},{"a_idx":{"$eq":20}},{"a_noidx":{"$elemMatch":{"$exists":false}}}],"a_compound":{"$elemMatch":{"$in":[14,3,14,18]}},"a_idx":{"$elemMatch":{"$nin":[8,7,20]}}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[8.0, 8.0]","[10.0, 10.0]"]}},{"stage":"IXSCAN","indexName":"a_compound_1_i_compound_1","indexBounds":{"a_compound":["[6.0, 6.0]","[20.0, 20.0]"],"i_compound":["[MinKey, MaxKey]"]}}]}},
    "keys" :  22965,
    "docs" :  22831,
    "sorts":      0,
    "plans":      9,
    "rows" :   4680},

{">>>pipeline": [{"$match":{"$or":[{"k_idx":{"$eq":10}},{"a_idx":{"$all":[2,17,16]}},{"a_compound":{"$exists":true}},{"$or":[{"$and":[{"z_idx":{"$nin":[20,14,13,14]}},{"$or":[{"a_compound":{"$elemMatch":{"$exists":true}}},{"d_compound":{"$exists":true}},{"a_idx":{"$exists":true}},{"a_noidx":{"$in":[4,8]}}]},{"$nor":[{"a_compound":{"$nin":[17,14]}},{"a_compound":{"$nin":[12,18,17]}}]},{"i_noidx":{"$nin":[14,8,2]}},{"d_noidx":{"$nin":[15,10]}}]},{"a_idx":{"$all":[17,14]}}]}],"a_compound":{"$all":[1,4]}}},{"$sort":{"i_idx":1,"k_idx":1,"z_idx":1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[1.0, 1.0]"]}}}},
    "keys" :  44506,
    "docs" :  44506,
    "sorts":  43364,
    "plans":     15,
    "rows" :   4597},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$elemMatch":{"$exists":true,"$in":[6,6]}}},{"$or":[{"a_compound":{"$all":[4,9,3]}},{"a_compound":{"$ne":19}}]},{"a_compound":{"$exists":true}}],"$nor":[{"z_idx":{"$nin":[5,20,4]}},{"k_idx":{"$eq":11}}]}},{"$project":{"_id":0,"a_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[6.0, 6.0]"]}}}},
    "keys" :  10873,
    "docs" :  10873,
    "sorts":      0,
    "plans":     15,
    "rows" :   1032},

{">>>pipeline": [{"$match":{"$or":[{"k_compound":{"$nin":[10,7,9,19]}},{"a_compound":{"$all":[11,7]}}],"a_compound":{"$elemMatch":{"$in":[16,1],"$nin":[4,4]}},"c_noidx":{"$nin":[16,7,13]}}},{"$sort":{"a_idx":-1,"i_idx":1}},{"$limit":169},{"$project":{"_id":0,"i_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[11.0, 11.0]"]}}},{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[MinKey, 7.0)","(7.0, 9.0)","(9.0, 10.0)","(10.0, 19.0)","(19.0, MaxKey]"]}}]}}}},
    "keys" : 100608,
    "docs" : 100604,
    "sorts": 275606,
    "plans":     11,
    "rows" :    169},

{">>>pipeline": [{"$match":{"$or":[{"$and":[{"k_noidx":{"$gte":9}},{"a_idx":{"$all":[10,2]}},{"k_idx":{"$in":[18,14]}},{"c_idx":{"$exists":false}},{"k_idx":{"$ne":11}}]},{"$or":[{"c_idx":{"$gte":2}},{"a_idx":{"$all":[11,12]}},{"d_compound":{"$exists":true}}]}],"a_compound":{"$all":[2,5]}}},{"$sort":{"d_idx":-1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[5.0, 5.0]"]}}}},
    "keys" :  12528,
    "docs" :  12528,
    "sorts":  31615,
    "plans":     15,
    "rows" :   3456},

{">>>pipeline": [{"$match":{"$or":[{"$or":[{"k_idx":{"$exists":false}},{"a_idx":{"$all":[16,13]}},{"c_compound":{"$ne":4}}]},{"a_idx":{"$in":[18,7,8]}}],"a_compound":{"$in":[11,5,9]}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[5.0, 5.0]","[9.0, 9.0]","[11.0, 11.0]"]}}},
    "keys" :  23548,
    "docs" :  23255,
    "sorts":      0,
    "plans":      8,
    "rows" :  23255},

{">>>pipeline": [{"$match":{"$and":[{"k_idx":{"$lte":2}},{"a_idx":{"$lte":12}},{"$or":[{"a_idx":{"$all":[20,12,1]}},{"i_compound":{"$nin":[19,15]}}]},{"$or":[{"a_compound":{"$elemMatch":{"$exists":true,"$nin":[5,14]}}},{"a_compound":{"$exists":false}},{"i_idx":{"$eq":3}}]}],"$or":[{"$nor":[{"k_idx":{"$gt":20}},{"d_noidx":{"$gte":12}},{"h_noidx":{"$exists":false}}]},{"a_idx":{"$nin":[4,11,18,1]}}],"c_compound":{"$nin":[9,12]}}},{"$project":{"z_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[-inf, 2.0]"]}}}},
    "keys" :    300,
    "docs" :    300,
    "sorts":      0,
    "plans":     16,
    "rows" :    300},

{">>>pipeline": [{"$match":{"$or":[{"d_compound":{"$ne":19}},{"$or":[{"i_compound":{"$in":[15,17,10]}},{"z_compound":{"$gt":16}},{"i_compound":{"$gt":11}},{"a_idx":{"$in":[20,12]}}]}],"a_compound":{"$elemMatch":{"$nin":[14,11,6]}}}},{"$sort":{"h_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     13,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$and":[{"d_idx":{"$eq":1}},{"c_compound":{"$nin":[13,16,16,16,7]}},{"a_noidx":{"$nin":[14,3,8,11]}}],"$nor":[{"$nor":[{"a_compound":{"$all":[15,20,14]}},{"a_compound":{"$nin":[17,17]}},{"$nor":[{"a_compound":{"$exists":true}},{"a_compound":{"$exists":true}},{"z_noidx":{"$exists":false}}]},{"$or":[{"a_idx":{"$elemMatch":{"$exists":false,"$lte":7,"$nin":[15,9]}}},{"a_compound":{"$in":[3,20,14]}},{"i_idx":{"$gt":3}},{"a_compound":{"$lt":4}},{"$and":[{"a_compound":{"$elemMatch":{"$exists":false}}},{"c_noidx":{"$exists":false}},{"k_compound":{"$in":[6,11,2]}}]}]}]},{"h_compound":{"$lte":6}}],"i_compound":{"$exists":true}}},{"$limit":41}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[1.0, 1.0]"]}}}},
    "keys" :     67,
    "docs" :     67,
    "sorts":      0,
    "plans":     16,
    "rows" :     41},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$all":[12,7,1,3]}},{"a_compound":{"$exists":true}},{"a_compound":{"$elemMatch":{"$lt":11}}}],"i_compound":{"$exists":true}}},{"$sort":{"d_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     13,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$and":[{"a_idx":{"$lt":17}},{"$nor":[{"a_idx":{"$in":[18,5,20,11]}},{"z_compound":{"$exists":false}},{"a_idx":{"$exists":false}}]}],"$or":[{"a_compound":{"$all":[17,3]}},{"$and":[{"a_noidx":{"$elemMatch":{"$in":[15,20]}}},{"z_idx":{"$exists":true}},{"i_noidx":{"$exists":false}}]},{"a_compound":{"$exists":true}}]}},{"$limit":19}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_compound_1","indexBounds":{"z_compound":["[MinKey, MaxKey]"]}}}},
    "keys" :     20,
    "docs" :     20,
    "sorts":      0,
    "plans":     14,
    "rows" :     19},

{">>>pipeline": [{"$match":{"$or":[{"c_compound":{"$eq":1}},{"$and":[{"a_idx":{"$eq":19}},{"a_noidx":{"$all":[2,13,10]}}]},{"c_compound":{"$ne":13}},{"a_idx":{"$all":[16,2,16]}}],"z_compound":{"$exists":true},"z_noidx":{"$lt":3}}},{"$sort":{"c_idx":1}},{"$limit":222},{"$project":{"a_noidx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" :    325,
    "docs" :    325,
    "sorts":      0,
    "plans":     13,
    "rows" :    222},

{">>>pipeline": [{"$match":{"$and":[{"k_compound":{"$exists":true}},{"a_compound":{"$lt":17}},{"$nor":[{"a_noidx":{"$nin":[7,16]}},{"a_compound":{"$all":[9,12]}}]}]}},{"$project":{"a_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     13,
    "rows" :  11252},

{">>>pipeline": [{"$match":{"$nor":[{"$or":[{"i_idx":{"$lt":6}},{"a_compound":{"$all":[14,20,15,10]}},{"d_noidx":{"$in":[8,8]}},{"c_compound":{"$gt":6}}]},{"z_idx":{"$in":[12,5,17]}}],"a_compound":{"$elemMatch":{"$exists":true,"$in":[12,19,4,13],"$nin":[2,3]}},"a_idx":{"$lte":6}}},{"$sort":{"c_idx":-1}},{"$limit":210},{"$skip":15}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MaxKey, MinKey]"]}}}}},
    "keys" :   1161,
    "docs" :   1161,
    "sorts":      0,
    "plans":     18,
    "rows" :    195},

{">>>pipeline": [{"$match":{"$or":[{"z_compound":{"$nin":[10,8]}},{"a_compound":{"$exists":true}},{"d_compound":{"$eq":20}}],"a_idx":{"$elemMatch":{"$lte":17}},"i_compound":{"$exists":true}}},{"$sort":{"c_idx":1,"d_idx":1}},{"$limit":100},{"$project":{"k_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[-inf, 17.0]"]}}}}},
    "keys" : 197941,
    "docs" : 100000,
    "sorts": 560517,
    "plans":     13,
    "rows" :    100},

{">>>pipeline": [{"$match":{"$and":[{"h_noidx":{"$lte":8}},{"$nor":[{"k_idx":{"$exists":false}},{"c_idx":{"$exists":false}}]}],"$or":[{"a_compound":{"$nin":[4,19,19]}},{"a_idx":{"$all":[18,15,17,16]}}],"k_compound":{"$nin":[2,3,11]}}},{"$sort":{"i_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     15,
    "rows" :   7223},

{">>>pipeline": [{"$match":{"$and":[{"d_compound":{"$lt":13}},{"a_idx":{"$lte":2}},{"$or":[{"d_compound":{"$ne":18}},{"$and":[{"a_noidx":{"$all":[19,3,11]}},{"a_idx":{"$elemMatch":{"$nin":[2,6]}}},{"a_idx":{"$all":[20,14,8]}}]}]},{"h_compound":{"$lte":16}}],"a_compound":{"$in":[18,12,6]}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[6.0, 6.0]","[12.0, 12.0]","[18.0, 18.0]"]}}},
    "keys" :  12876,
    "docs" :  12856,
    "sorts":      0,
    "plans":     14,
    "rows" :   2435},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$gte":9}},{"a_compound":{"$elemMatch":{"$in":[1,20,3],"$nin":[12,12,16]}}}],"a_compound":{"$elemMatch":{"$in":[12,4],"$lt":16}},"k_compound":{"$nin":[14,12,4,2]}}},{"$sort":{"d_idx":-1,"h_idx":1}},{"$limit":37}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"IXSCAN","indexName":"k_compound_1_a_compound_1","indexBounds":{"k_compound":["[MinKey, 2.0)","(2.0, 4.0)","(4.0, 12.0)","(12.0, 14.0)","(14.0, MaxKey]"],"a_compound":["[9.0, inf]"]}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[1.0, 1.0]","[3.0, 3.0]","[20.0, 20.0]"]}}}]}}},
    "keys" : 360723,
    "docs" : 164898,
    "sorts":  81696,
    "plans":     13,
    "rows" :     37},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[8,4]}},{"k_noidx":{"$ne":17}}],"a_idx":{"$lte":17}}},{"$sort":{"c_idx":-1}},{"$limit":83},{"$project":{"_id":0,"d_idx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MaxKey, MinKey]"]}}}}},
    "keys" :  82983,
    "docs" :  82983,
    "sorts":      0,
    "plans":      6,
    "rows" :     83},

{">>>pipeline": [{"$match":{"$nor":[{"k_compound":{"$in":[2,8,18]}},{"a_compound":{"$in":[10,10]}}],"a_compound":{"$lte":1}}},{"$project":{"_id":0,"a_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[MinKey, 2.0)","(2.0, 8.0)","(8.0, 18.0)","(18.0, MaxKey]"]}}}},
    "keys" :  99703,
    "docs" :  99700,
    "sorts":      0,
    "plans":      6,
    "rows" :  49604},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$lt":10}},{"a_idx":{"$all":[3,14,7]}},{"a_idx":{"$all":[15,7,1]}}],"i_idx":{"$in":[20,14]}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[14.0, 14.0]","[20.0, 20.0]"]}}},
    "keys" :      4,
    "docs" :      2,
    "sorts":      0,
    "plans":     11,
    "rows" :      2},

{">>>pipeline": [{"$match":{"$nor":[{"z_idx":{"$gt":20}},{"a_compound":{"$all":[3,8,11,10]}}],"a_idx":{"$in":[13,6]}}},{"$limit":81},{"$project":{"a_compound":1,"a_noidx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[6.0, 6.0]","[13.0, 13.0]"]}}}}},
    "keys" :     81,
    "docs" :     81,
    "sorts":      0,
    "plans":     12,
    "rows" :     81},

{">>>pipeline": [{"$match":{"a_compound":{"$gte":17},"d_compound":{"$gte":1}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[17.0, inf]"]}}},
    "keys" : 272000,
    "docs" :  99983,
    "sorts":      0,
    "plans":      4,
    "rows" :  89985},

{">>>pipeline": [{"$match":{"$or":[{"i_compound":{"$exists":true}},{"a_idx":{"$all":[15,5]}}],"a_compound":{"$all":[3,19]}}},{"$sort":{"z_idx":-1}},{"$limit":51}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[19.0, 19.0]"]}}}},
    "keys" :   1000,
    "docs" :   1000,
    "sorts":    838,
    "plans":     16,
    "rows" :     51},

{">>>pipeline": [{"$match":{"$nor":[{"c_noidx":{"$exists":false}},{"a_compound":{"$all":[8,18,10,3]}}],"a_compound":{"$elemMatch":{"$nin":[9,7,7]}}}},{"$sort":{"z_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     13,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$or":[{"$and":[{"h_noidx":{"$nin":[2,2,8]}},{"d_compound":{"$exists":false}}]},{"k_compound":{"$lte":4}},{"a_idx":{"$elemMatch":{"$nin":[16,2]}}},{"a_compound":{"$elemMatch":{"$nin":[13,11,18,17]}}}],"a_compound":{"$elemMatch":{"$in":[16,2]}}}},{"$sort":{"d_idx":1,"i_idx":-1,"k_idx":-1,"z_idx":1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[2.0, 2.0]","[16.0, 16.0]"]}}}},
    "keys" :  39794,
    "docs" :  39477,
    "sorts": 457281,
    "plans":     10,
    "rows" :  39477},

{">>>pipeline": [{"$match":{"$nor":[{"d_noidx":{"$gte":4}},{"a_compound":{"$all":[15,9,18]}}],"i_idx":{"$exists":true}}},{"$sort":{"h_idx":1,"k_idx":-1}},{"$skip":3}],
    "winningPlan": {"stage":"SKIP","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts": 463865,
    "plans":      9,
    "rows" :  39997},

{">>>pipeline": [{"$match":{"a_compound":{"$gte":11},"d_compound":{"$nin":[16,6,6]}}},{"$sort":{"i_idx":-1}},{"$limit":120}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MaxKey, MinKey]"]}}}},
    "keys" :    133,
    "docs" :    133,
    "sorts":      0,
    "plans":      5,
    "rows" :    120},

{">>>pipeline": [{"$match":{"a_compound":{"$eq":1},"c_compound":{"$eq":1}}},{"$sort":{"z_idx":1}},{"$limit":72}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MinKey, MaxKey]"]}}}},
    "keys" :     72,
    "docs" :     72,
    "sorts":      0,
    "plans":      6,
    "rows" :     72},

{">>>pipeline": [{"$match":{"$nor":[{"h_idx":{"$lte":13}},{"a_compound":{"$all":[11,12,18,4]}},{"a_compound":{"$exists":false}}],"a_idx":{"$lte":6}}},{"$skip":70}],
    "winningPlan": {"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MinKey, -inf)","(13.0, MaxKey]"]}}}},
    "keys" :  86001,
    "docs" :  86000,
    "sorts":      0,
    "plans":     14,
    "rows" :  85826},

{">>>pipeline": [{"$match":{"$and":[{"$and":[{"a_noidx":{"$lt":6}},{"k_compound":{"$exists":true}}]},{"a_compound":{"$exists":true}},{"a_compound":{"$lte":20}}],"$or":[{"$and":[{"$nor":[{"a_noidx":{"$all":[8,20,3]}},{"i_idx":{"$lt":15}}]},{"a_noidx":{"$exists":true}},{"a_idx":{"$elemMatch":{"$exists":true,"$gt":20,"$in":[12,1]}}},{"$or":[{"z_idx":{"$gte":14}},{"a_noidx":{"$in":[17,1]}},{"k_idx":{"$ne":7}},{"c_compound":{"$gt":2}},{"c_idx":{"$ne":16}}]},{"k_noidx":{"$nin":[6,5,2]}}]},{"$or":[{"a_idx":{"$all":[14,18,10]}},{"i_compound":{"$gte":3}}]}]}},{"$project":{"_id":0,"a_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[-inf, 20.0]"]}}}},
    "keys" : 200941,
    "docs" : 100000,
    "sorts":      0,
    "plans":     16,
    "rows" :  99445},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$elemMatch":{"$gt":3}}},{"a_idx":{"$all":[6,4,13]}},{"a_idx":{"$all":[7,8]}}],"a_compound":{"$elemMatch":{"$nin":[7,12]}}}},{"$sort":{"a_idx":-1}},{"$limit":231},{"$project":{"_id":0,"a_compound":1,"a_noidx":1,"d_idx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}}}},
    "keys" :    231,
    "docs" :    231,
    "sorts":      0,
    "plans":     13,
    "rows" :    231},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$elemMatch":{"$nin":[6,10,3]}}},{"i_compound":{"$exists":true}},{"$or":[{"a_idx":{"$elemMatch":{"$exists":true}}},{"a_compound":{"$elemMatch":{"$lt":11}}}]}],"a_compound":{"$lt":18}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[-inf, 18.0)"]}}},
    "keys" : 197941,
    "docs" : 100000,
    "sorts":      0,
    "plans":     12,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$and":[{"a_noidx":{"$elemMatch":{"$in":[6,4]}}},{"a_noidx":{"$exists":true}},{"$or":[{"c_compound":{"$nin":[7,3,17]}},{"$and":[{"a_compound":{"$all":[12,2,16,20]}},{"h_idx":{"$in":[15,20,3,16]}},{"a_compound":{"$all":[14,5,4]}}]}]}],"$or":[{"z_compound":{"$lt":13}},{"d_idx":{"$exists":true}},{"a_compound":{"$all":[6,7]}}]}},{"$sort":{"a_idx":-1,"z_idx":-1}},{"$project":{"a_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[3.0, 3.0]","[15.0, 15.0]","[16.0, 16.0]","[20.0, 20.0]"]}}},{"stage":"IXSCAN","indexName":"c_compound_1","indexBounds":{"c_compound":["[MinKey, 3.0)","(3.0, 7.0)","(7.0, 17.0)","(17.0, MaxKey]"]}}]}}}},
    "keys" : 104003,
    "docs" : 104000,
    "sorts": 303998,
    "plans":     19,
    "rows" :  27123},

{">>>pipeline": [{"$match":{"$and":[{"$or":[{"a_compound":{"$all":[19,17,8,1]}},{"i_compound":{"$ne":11}}]},{"i_noidx":{"$eq":16}}],"z_noidx":{"$in":[3,16]}}},{"$sort":{"k_idx":-1}},{"$limit":252},{"$project":{"a_noidx":1,"c_noidx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MaxKey, MinKey]"]}}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     10,
    "rows" :      0},

{">>>pipeline": [{"$match":{"$nor":[{"h_idx":{"$in":[13,4,11,2]}},{"i_noidx":{"$in":[20,2,6,9]}},{"a_compound":{"$all":[9,1]}},{"a_idx":{"$elemMatch":{"$exists":false,"$in":[19,20]}}}],"k_compound":{"$lt":5}}},{"$sort":{"i_idx":-1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[-inf, 5.0)"]}}}},
    "keys" :    500,
    "docs" :    500,
    "sorts":   2011,
    "plans":     13,
    "rows" :    300},

{">>>pipeline": [{"$match":{"$nor":[{"c_compound":{"$gt":12}},{"$nor":[{"$nor":[{"c_compound":{"$exists":false}},{"a_idx":{"$elemMatch":{"$exists":true,"$nin":[3,5]}}}]},{"a_compound":{"$nin":[1,7]}}]},{"a_compound":{"$in":[17,12]}}],"a_compound":{"$elemMatch":{"$in":[3,16]}}}},{"$sort":{"c_idx":-1,"i_idx":-1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[MinKey, 12.0)","(12.0, 17.0)","(17.0, MaxKey]"]}}}},
    "keys" : 466943,
    "docs" : 100000,
    "sorts": 202556,
    "plans":     10,
    "rows" :  18693},

{">>>pipeline": [{"$match":{"a_compound":{"$gte":5},"i_compound":{"$exists":true}}},{"$sort":{"i_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :  99995},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[15,20,4]}},{"h_compound":{"$gt":13}}],"a_compound":{"$elemMatch":{"$exists":true}}}},{"$sort":{"a_idx":-1,"d_idx":-1,"k_idx":1}},{"$limit":85},{"$project":{"a_compound":1,"a_idx":1,"c_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_compound_1","indexBounds":{"h_compound":["[MinKey, 13.0]","(inf, MaxKey]"]}}}}},
    "keys" :  14001,
    "docs" :  14000,
    "sorts":  76197,
    "plans":     11,
    "rows" :     85},

{">>>pipeline": [{"$match":{"$or":[{"d_compound":{"$nin":[3,20,13]}},{"$and":[{"d_compound":{"$in":[9,19,19,15]}},{"i_compound":{"$nin":[10,3]}},{"h_idx":{"$in":[2,18,8]}},{"h_idx":{"$exists":false}}]},{"a_idx":{"$gt":14}}],"z_idx":{"$exists":true}}},{"$limit":6}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":[]}}},{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["(14.0, inf]"]}},{"stage":"IXSCAN","indexName":"d_compound_1_k_compound_1","indexBounds":{"d_compound":["[MinKey, 3.0)","(3.0, 13.0)","(13.0, 20.0)","(20.0, MaxKey]"],"k_compound":["[MinKey, MaxKey]"]}}]}}},
    "keys" :      6,
    "docs" :      6,
    "sorts":      0,
    "plans":      7,
    "rows" :      6},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$all":[5,7,5,12]}},{"a_compound":{"$gt":5}}]}},{"$sort":{"d_idx":1}},{"$project":{"_id":0,"a_compound":1}}],
    "winningPlan": {"stage":"SUBPLAN","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      9,
    "rows" :  99994},

{">>>pipeline": [{"$match":{"$and":[{"a_noidx":{"$nin":[15,15]}},{"a_idx":{"$in":[1,14]}},{"a_noidx":{"$nin":[6,5]}},{"$nor":[{"a_compound":{"$all":[8,11,16]}},{"a_compound":{"$in":[11,16]}},{"k_compound":{"$in":[8,17,3,4]}}]}]}},{"$limit":178}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[1.0, 1.0]","[14.0, 14.0]"]}}}},
    "keys" :    228,
    "docs" :    228,
    "sorts":      0,
    "plans":     15,
    "rows" :    178},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$nin":[4,20]}},{"a_idx":{"$all":[9,11,15,4]}}],"a_compound":{"$elemMatch":{"$eq":8,"$nin":[9,18]}}}},{"$project":{"k_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[8.0, 8.0]"]}}}},
    "keys" :  10081,
    "docs" :  10081,
    "sorts":      0,
    "plans":      7,
    "rows" :   9246},

{">>>pipeline": [{"$match":{"$and":[{"d_compound":{"$exists":true}},{"a_noidx":{"$exists":true}},{"a_idx":{"$in":[16,18,11]}}],"$nor":[{"a_noidx":{"$elemMatch":{"$exists":false,"$in":[9,17]}}},{"c_idx":{"$eq":19}},{"a_compound":{"$all":[10,12,3]}}],"a_compound":{"$elemMatch":{"$eq":11}}}},{"$sort":{"h_idx":-1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[11.0, 11.0]"]}}}},
    "keys" :   1004,
    "docs" :   1004,
    "sorts":   7943,
    "plans":     15,
    "rows" :   1004},

{">>>pipeline": [{"$match":{"$or":[{"z_compound":{"$ne":15}},{"z_compound":{"$eq":16}}],"a_compound":{"$lt":2}}},{"$skip":9},{"$project":{"_id":0,"a_idx":1,"a_noidx":1,"c_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_compound_1","indexBounds":{"z_compound":["[MinKey, 15.0)","(15.0, MaxKey]"]}}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      6,
    "rows" :  50716},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$nin":[10,15]}},{"a_compound":{"$all":[7,6,10]}}],"a_compound":{"$exists":true}}},{"$sort":{"d_idx":1,"z_idx":1}},{"$project":{"a_compound":1,"a_noidx":1,"z_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[MinKey, MaxKey]"]}}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts": 1224192,
    "plans":     11,
    "rows" :  97993},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$lt":2}},{"a_compound":{"$all":[8,4,8]}}],"a_compound":{"$in":[6,14,8]}}},{"$limit":159}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[6.0, 6.0]","[8.0, 8.0]","[14.0, 14.0]"]}}}},
    "keys" :    394,
    "docs" :    394,
    "sorts":      0,
    "plans":     11,
    "rows" :    159},

{">>>pipeline": [{"$match":{"$nor":[{"c_compound":{"$in":[20,18]}},{"a_compound":{"$all":[11,18,1]}},{"k_compound":{"$exists":false}}],"h_idx":{"$nin":[4,20,14]}}},{"$project":{"k_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MinKey, 4.0)","(4.0, 14.0)","(14.0, 20.0)","(20.0, MaxKey]"]}}}},
    "keys" :  97003,
    "docs" :  97000,
    "sorts":      0,
    "plans":     15,
    "rows" :  97000},

{">>>pipeline": [{"$match":{"a_idx":{"$nin":[5,11]},"i_compound":{"$exists":true},"k_idx":{"$nin":[8,13,18,7,19]}}},{"$sort":{"h_idx":-1}},{"$limit":114},{"$project":{"_id":0,"a_compound":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MaxKey, MinKey]"]}}}}},
    "keys" :    116,
    "docs" :    116,
    "sorts":      0,
    "plans":      5,
    "rows" :    114},

{">>>pipeline": [{"$match":{"$nor":[{"$or":[{"z_compound":{"$exists":false}},{"a_compound":{"$nin":[10,9]}},{"a_compound":{"$in":[17,20,20]}},{"a_noidx":{"$elemMatch":{"$in":[4,5]}}}]},{"a_noidx":{"$all":[16,14,9]}}],"k_compound":{"$exists":true}}},{"$project":{"_id":0,"a_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[9.0, 9.0]","[10.0, 10.0]"]}}}},
    "keys" :  11021,
    "docs" :  11019,
    "sorts":      0,
    "plans":      8,
    "rows" :   9867},

{">>>pipeline": [{"$match":{"$nor":[{"z_compound":{"$nin":[12,11,20,1]}},{"d_compound":{"$nin":[9,17,10]}}],"c_compound":{"$nin":[20,4,7]}}},{"$sort":{"a_idx":1}},{"$project":{"a_idx":1,"k_noidx":1,"z_noidx":1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_compound_1","indexBounds":{"d_compound":["[9.0, 9.0]","[10.0, 10.0]","[17.0, 17.0]"]}}}}},
    "keys" :  10000,
    "docs" :  10000,
    "sorts":  34713,
    "plans":      7,
    "rows" :   3760},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$gte":7}},{"a_idx":{"$all":[17,17,16]}},{"a_idx":{"$all":[13,16,19]}}],"a_idx":{"$elemMatch":{"$nin":[14,2]}}}},{"$limit":174},{"$project":{"i_compound":1,"z_idx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, 2.0)","(2.0, 14.0)","(14.0, MaxKey]"]}}}}},
    "keys" :    175,
    "docs" :    175,
    "sorts":      0,
    "plans":     11,
    "rows" :    174},

{">>>pipeline": [{"$match":{"$and":[{"i_idx":{"$nin":[6,19,19]}},{"$or":[{"a_idx":{"$lte":4}},{"a_idx":{"$all":[20,5,4,4]}}]},{"$and":[{"a_noidx":{"$lte":19}},{"a_compound":{"$ne":18}}]},{"a_idx":{"$elemMatch":{"$exists":true,"$in":[3,19]}}},{"a_idx":{"$nin":[8,8,1,12,13]}}]}},{"$limit":145},{"$skip":4}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[3.0, 3.0]","[19.0, 19.0]"]}}}}},
    "keys" :    213,
    "docs" :    213,
    "sorts":      0,
    "plans":      9,
    "rows" :    141},

{">>>pipeline": [{"$match":{"$and":[{"$or":[{"a_compound":{"$elemMatch":{"$in":[14,8,15]}}},{"a_idx":{"$nin":[11,17]}},{"z_idx":{"$exists":true}},{"i_compound":{"$nin":[17,14]}},{"a_idx":{"$all":[4,19]}}]},{"c_compound":{"$exists":true}}],"i_compound":{"$nin":[8,18]}}},{"$project":{"a_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_compound_1_d_compound_1","indexBounds":{"c_compound":["[MinKey, MaxKey]"],"d_compound":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     14,
    "rows" :  99998},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[15,12]}},{"a_noidx":{"$in":[11,9,20]}}],"k_compound":{"$nin":[12,6,4]}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[MinKey, 4.0)","(4.0, 6.0)","(6.0, 12.0)","(12.0, MaxKey]"]}}},
    "keys" :  99703,
    "docs" :  99700,
    "sorts":      0,
    "plans":     11,
    "rows" :  87684},

{">>>pipeline": [{"$match":{"$nor":[{"a_idx":{"$elemMatch":{"$in":[19,4,14]}}},{"a_compound":{"$all":[7,3,17]}}],"k_compound":{"$nin":[8,13]}}},{"$sort":{"d_idx":1}},{"$limit":34},{"$project":{"_id":0,"a_idx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" :     35,
    "docs" :     35,
    "sorts":      0,
    "plans":     13,
    "rows" :     34},

{">>>pipeline": [{"$match":{"$or":[{"$and":[{"a_compound":{"$elemMatch":{"$nin":[19,14]}}},{"a_idx":{"$all":[1,6]}},{"a_noidx":{"$in":[9,7,3]}},{"a_noidx":{"$elemMatch":{"$nin":[7,5,7,10,19]}}}]},{"c_compound":{"$nin":[20,19]}}],"d_compound":{"$exists":true}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_compound_1","indexBounds":{"d_compound":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     12,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$and":[{"d_compound":{"$exists":true}},{"$or":[{"z_compound":{"$gte":10}},{"d_idx":{"$in":[5,20]}}]},{"a_compound":{"$in":[6,3,19,10]}}],"$or":[{"a_compound":{"$exists":true}},{"a_compound":{"$all":[8,9,11]}}]}},{"$limit":105}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"IXSCAN","indexName":"z_compound_1","indexBounds":{"z_compound":["[10.0, inf]"]}},{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[5.0, 5.0]","[20.0, 20.0]"]}}]}}},
    "keys" :    452,
    "docs" :    452,
    "sorts":      0,
    "plans":     15,
    "rows" :    105},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$elemMatch":{"$nin":[11,9]}}},{"a_compound":{"$lte":15}},{"a_compound":{"$all":[8,20]}}],"a_compound":{"$elemMatch":{"$in":[16,14,15]}}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[14.0, 14.0]","[15.0, 15.0]","[16.0, 16.0]"]}}},
    "keys" :   3001,
    "docs" :   3000,
    "sorts":      0,
    "plans":     11,
    "rows" :   3000},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$elemMatch":{"$exists":true}}},{"i_compound":{"$eq":15}},{"a_compound":{"$all":[13,12]}}],"k_compound":{"$in":[6,17,5,18]}}},{"$sort":{"i_idx":-1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[5.0, 5.0]","[6.0, 6.0]","[17.0, 17.0]","[18.0, 18.0]"]}}}},
    "keys" :    402,
    "docs" :    400,
    "sorts":   2797,
    "plans":     12,
    "rows" :    400},

{">>>pipeline": [{"$match":{"$nor":[{"z_noidx":{"$in":[3,18,17]}},{"d_idx":{"$gt":5}},{"a_compound":{"$exists":false}},{"a_compound":{"$all":[13,20,5]}},{"d_compound":{"$exists":false}}],"k_compound":{"$nin":[8,13]}}},{"$project":{"_id":0,"a_noidx":1,"d_noidx":1,"k_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_compound_1_k_compound_1","indexBounds":{"d_compound":["[MinKey, MaxKey]"],"k_compound":["[MinKey, 8.0)","(8.0, 13.0)","(13.0, MaxKey]"]}}}},
    "keys" :  99802,
    "docs" :  99800,
    "sorts":      0,
    "plans":     17,
    "rows" :  49413},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[8,3,1]}},{"d_noidx":{"$exists":false}}],"d_noidx":{"$exists":true}}},{"$sort":{"a_idx":-1,"h_idx":1,"k_idx":-1}},{"$skip":55}],
    "winningPlan": {"stage":"SKIP","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[MinKey, 1.0)","(1.0, MaxKey]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1_i_compound_1","indexBounds":{"a_compound":["[MinKey, MaxKey]"],"i_compound":["[MinKey, MaxKey]"]}}}]}}}},
    "keys" : 893377,
    "docs" : 300000,
    "sorts": 1251293,
    "plans":      8,
    "rows" :  99945},

{">>>pipeline": [{"$match":{"$nor":[{"$and":[{"a_compound":{"$all":[6,13,8]}},{"a_compound":{"$all":[7,16,19]}},{"i_idx":{"$nin":[1,2]}}]},{"h_idx":{"$gte":10}},{"a_idx":{"$exists":false}}],"a_compound":{"$elemMatch":{"$exists":true,"$nin":[16,9,10,17]}},"d_compound":{"$exists":true}}},{"$sort":{"c_idx":-1,"z_idx":1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MinKey, 10.0)","(inf, MaxKey]"]}}}},
    "keys" :  10001,
    "docs" :  10000,
    "sorts": 102103,
    "plans":     16,
    "rows" :  10000},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$elemMatch":{"$exists":false,"$nin":[19,18,5]}}},{"a_idx":{"$elemMatch":{"$exists":false}}},{"d_noidx":{"$gte":8}}],"a_compound":{"$elemMatch":{"$exists":true,"$nin":[4,10]}},"a_idx":{"$elemMatch":{"$exists":true}},"k_compound":{"$ne":15}}},{"$sort":{"i_idx":-1}},{"$project":{"a_idx":1,"a_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      6,
    "rows" :  79900},

{">>>pipeline": [{"$match":{"$and":[{"a_idx":{"$elemMatch":{"$exists":true}}},{"$and":[{"k_idx":{"$in":[8,20]}},{"c_compound":{"$nin":[16,16,15]}}]},{"c_compound":{"$nin":[14,14,9,18]}}],"a_compound":{"$ne":17},"c_noidx":{"$exists":true},"d_idx":{"$nin":[9,1,3]}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[8.0, 8.0]","[20.0, 20.0]"]}}},
    "keys" :    202,
    "docs" :    200,
    "sorts":      0,
    "plans":      7,
    "rows" :    200},

{">>>pipeline": [{"$match":{"$and":[{"a_noidx":{"$elemMatch":{"$gt":13}}},{"$and":[{"c_compound":{"$lte":19}},{"a_compound":{"$elemMatch":{"$nin":[2,9]}}}]},{"$and":[{"z_noidx":{"$nin":[7,9]}},{"k_compound":{"$gte":1}}]}],"a_compound":{"$elemMatch":{"$gte":16}},"k_compound":{"$exists":true}}},{"$sort":{"a_idx":-1,"k_idx":1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1_a_compound_1","indexBounds":{"k_compound":["[1.0, inf]"],"a_compound":["[16.0, inf]"]}}}},
    "keys" : 273899,
    "docs" :  99885,
    "sorts": 1245726,
    "plans":      8,
    "rows" :  99588},

{">>>pipeline": [{"$match":{"$or":[{"d_idx":{"$nin":[2,14]}},{"$or":[{"h_idx":{"$in":[19,11,8,10,5]}},{"a_compound":{"$all":[3,18]}},{"a_compound":{"$all":[16,1]}}]}],"i_compound":{"$ne":20}}},{"$sort":{"i_idx":1}},{"$limit":89}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MinKey, MaxKey]"]}}}},
    "keys" :    100,
    "docs" :    100,
    "sorts":      0,
    "plans":     12,
    "rows" :     89},

{">>>pipeline": [{"$match":{"$and":[{"$or":[{"a_compound":{"$all":[20,1,3]}},{"c_idx":{"$nin":[3,16]}},{"k_idx":{"$nin":[17,8]}}]},{"a_compound":{"$elemMatch":{"$gt":16}}}]}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["(16.0, inf]"]}}},
    "keys" : 272000,
    "docs" :  99983,
    "sorts":      0,
    "plans":      9,
    "rows" :  99983},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$elemMatch":{"$exists":true}}},{"c_compound":{"$nin":[3,3,12]}},{"d_compound":{"$ne":7}},{"a_idx":{"$all":[5,16]}}],"a_idx":{"$nin":[11,11,20]},"k_compound":{"$ne":17}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[MinKey, 17.0)","(17.0, MaxKey]"]}}},
    "keys" :  99901,
    "docs" :  99900,
    "sorts":      0,
    "plans":     13,
    "rows" :  97896},

{">>>pipeline": [{"$match":{"$nor":[{"a_noidx":{"$nin":[8,8,4]}},{"a_compound":{"$all":[20,6,11]}}],"a_compound":{"$in":[5,8,11]}}},{"$project":{"_id":0,"a_noidx":1,"k_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[5.0, 5.0]","[8.0, 8.0]","[11.0, 11.0]"]}}}},
    "keys" :  23616,
    "docs" :  23303,
    "sorts":      0,
    "plans":     10,
    "rows" :  11239},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[7,7]}},{"a_compound":{"$all":[5,11,20,3]}}],"a_compound":{"$elemMatch":{"$exists":true,"$gt":1}}}},{"$project":{"c_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[MinKey, 7.0)","(7.0, MaxKey]"]}}}},
    "keys" : 458685,
    "docs" : 100000,
    "sorts":      0,
    "plans":     14,
    "rows" :  89743},

{">>>pipeline": [{"$match":{"$nor":[{"k_idx":{"$exists":false}},{"a_compound":{"$all":[12,19,16,4]}}],"a_compound":{"$exists":true}}},{"$limit":39},{"$project":{"_id":0,"a_compound":1,"k_noidx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" :     39,
    "docs" :     39,
    "sorts":      0,
    "plans":     13,
    "rows" :     39},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$in":[15,9]}},{"k_compound":{"$nin":[8,4]}},{"a_compound":{"$elemMatch":{"$eq":14,"$exists":true}}}],"k_compound":{"$exists":true}}},{"$project":{"_id":0,"d_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     12,
    "rows" :  99800},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$elemMatch":{"$nin":[15,5,20,11,6]}}},{"a_idx":{"$all":[18,11]}},{"i_compound":{"$exists":true}}],"a_compound":{"$exists":true},"k_compound":{"$gte":18}}},{"$sort":{"k_idx":1}},{"$limit":92},{"$project":{"_id":0,"a_noidx":1,"k_noidx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" :   1892,
    "docs" :   1892,
    "sorts":      0,
    "plans":     14,
    "rows" :     92},

{">>>pipeline": [{"$match":{"a_compound":{"$elemMatch":{"$eq":9,"$exists":true}},"a_idx":{"$elemMatch":{"$gte":20}},"k_idx":{"$gt":12}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[9.0, 9.0]"]}}},
    "keys" :  10013,
    "docs" :  10013,
    "sorts":      0,
    "plans":      4,
    "rows" :   9912},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$elemMatch":{"$ne":16}}},{"a_compound":{"$exists":true}},{"a_compound":{"$elemMatch":{"$nin":[15,1,9]}}},{"z_compound":{"$exists":true}}]}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[MinKey, 16.0)","(16.0, MaxKey]"]}}},
    "keys" : 467942,
    "docs" : 100000,
    "sorts":      0,
    "plans":      8,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[3,11,5,10]}},{"c_compound":{"$eq":9}}],"$or":[{"a_compound":{"$lt":10}},{"a_compound":{"$all":[5,12]}},{"a_idx":{"$all":[1,14,15]}}]}},{"$sort":{"c_idx":1}},{"$limit":236}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MinKey, MaxKey]"]}}}},
    "keys" :    236,
    "docs" :    236,
    "sorts":      0,
    "plans":     10,
    "rows" :    236},

{">>>pipeline": [{"$match":{"$nor":[{"a_idx":{"$eq":15}},{"a_compound":{"$nin":[1,14,18]}},{"a_compound":{"$all":[18,15,10]}}],"a_noidx":{"$exists":true}}},{"$project":{"_id":0,"a_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[1.0, 1.0]","[14.0, 14.0]","[18.0, 18.0]"]}}}},
    "keys" :  46509,
    "docs" :  45737,
    "sorts":      0,
    "plans":     11,
    "rows" :  45365},

{">>>pipeline": [{"$match":{"$nor":[{"a_idx":{"$elemMatch":{"$exists":false}}},{"a_noidx":{"$nin":[11,20,17]}}],"$or":[{"c_idx":{"$lte":1}},{"$or":[{"k_idx":{"$exists":true}},{"k_idx":{"$nin":[5,2]}},{"a_compound":{"$all":[18,17,15,8,1,4]}}]}],"h_compound":{"$nin":[18,20]},"k_noidx":{"$exists":true}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[-inf, 1.0]"]}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[18.0, 18.0]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MinKey, MaxKey]"]}}}]}},
    "keys" : 201000,
    "docs" : 201000,
    "sorts":      0,
    "plans":     11,
    "rows" :   2004},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$elemMatch":{"$nin":[4,18]}}},{"a_idx":{"$all":[14,4]}},{"a_idx":{"$all":[6,9]}}],"a_compound":{"$in":[16,2,3,15]},"a_idx":{"$in":[11,11]}}},{"$project":{"c_compound":1,"h_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[11.0, 11.0]"]}}}},
    "keys" :   1004,
    "docs" :   1004,
    "sorts":      0,
    "plans":     13,
    "rows" :    502},

{">>>pipeline": [{"$match":{"$or":[{"$and":[{"c_compound":{"$lte":10}},{"a_noidx":{"$exists":true}}]},{"a_compound":{"$all":[11,5,1,6]}}],"a_idx":{"$elemMatch":{"$lt":15}},"d_idx":{"$lte":2}}},{"$project":{"_id":0,"a_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[-inf, 2.0]"]}}}},
    "keys" :  30000,
    "docs" :  30000,
    "sorts":      0,
    "plans":     11,
    "rows" :  30000},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$elemMatch":{"$in":[9,3,12,14]}}},{"a_idx":{"$all":[15,1,7]}}],"a_compound":{"$in":[11,16]}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[11.0, 11.0]","[16.0, 16.0]"]}}},
    "keys" :   2006,
    "docs" :   2004,
    "sorts":      0,
    "plans":     10,
    "rows" :    349},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$all":[20,17,18]}},{"a_compound":{"$elemMatch":{"$in":[4,4,1]}}}],"a_noidx":{"$nin":[17,6]},"k_compound":{"$nin":[8,4,17]}}},{"$sort":{"c_idx":1,"h_idx":1}},{"$limit":59},{"$project":{"d_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1_a_compound_1","indexBounds":{"k_compound":["[MinKey, 4.0)","(4.0, 8.0)","(8.0, 17.0)","(17.0, MaxKey]"],"a_compound":["[MinKey, MaxKey]"]}}}}},
    "keys" : 467953,
    "docs" :  99700,
    "sorts": 262163,
    "plans":     12,
    "rows" :     59},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$exists":true}},{"$and":[{"a_compound":{"$all":[4,14,20]}},{"a_idx":{"$all":[18,17]}},{"a_compound":{"$nin":[13,17,12]}}]}],"z_compound":{"$exists":true}}},{"$limit":95},{"$project":{"_id":0,"a_idx":1,"a_noidx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_compound_1","indexBounds":{"z_compound":["[MinKey, MaxKey]"]}}}}},
    "keys" :     95,
    "docs" :     95,
    "sorts":      0,
    "plans":     12,
    "rows" :     95},

{">>>pipeline": [{"$match":{"$nor":[{"a_noidx":{"$nin":[15,16,14,2]}},{"k_compound":{"$in":[14,16,19]}},{"a_compound":{"$all":[6,12,8]}}],"a_compound":{"$gt":12}}},{"$sort":{"c_idx":1,"k_idx":-1}},{"$limit":82},{"$skip":20}],
    "winningPlan": {"stage":"SKIP","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1_a_compound_1","indexBounds":{"k_compound":["[MinKey, 14.0)","(14.0, 16.0)","(16.0, 19.0)","(19.0, MaxKey]"],"a_compound":["(12.0, inf]"]}}}}},
    "keys" : 276403,
    "docs" :  99687,
    "sorts": 219426,
    "plans":     14,
    "rows" :     62},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[5,19,2]}},{"$or":[{"c_compound":{"$exists":false}},{"d_noidx":{"$eq":17}}]}],"a_compound":{"$nin":[5,13,5]}}},{"$sort":{"a_idx":1,"z_idx":1}},{"$limit":27},{"$skip":11}],
    "winningPlan": {"stage":"SKIP","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[MinKey, 5.0)","(5.0, 13.0)","(13.0, MaxKey]"]}}}}},
    "keys" : 455415,
    "docs" : 100000,
    "sorts": 371568,
    "plans":     12,
    "rows" :     16},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$elemMatch":{"$gte":8}}},{"a_noidx":{"$in":[12,8]}},{"$and":[{"a_compound":{"$elemMatch":{"$exists":true,"$lte":6}}},{"a_idx":{"$nin":[10,3,1]}},{"i_noidx":{"$nin":[1,6,12]}}]}],"a_idx":{"$lte":14}}},{"$limit":126}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[8.0, inf]"]}}}},
    "keys" :    286,
    "docs" :    286,
    "sorts":      0,
    "plans":      6,
    "rows" :    126},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$ne":13}},{"a_idx":{"$all":[12,6]}}]}},{"$sort":{"h_idx":1}},{"$project":{"a_idx":1,"i_noidx":1}}],
    "winningPlan": {"stage":"SUBPLAN","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      7,
    "rows" :  99000},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$all":[1,9]}},{"a_idx":{"$all":[18,15]}},{"a_idx":{"$gte":12}}],"d_idx":{"$in":[15,9]}}},{"$sort":{"a_idx":-1,"i_idx":-1}},{"$limit":195}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[9.0, 9.0]","[15.0, 15.0]"]}}}},
    "keys" :  10000,
    "docs" :  10000,
    "sorts":  62724,
    "plans":     10,
    "rows" :    195},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[4,1,15,5]}},{"$or":[{"a_noidx":{"$in":[18,13]}},{"a_idx":{"$elemMatch":{"$gt":18}}}]}],"h_noidx":{"$exists":true}}},{"$limit":49},{"$project":{"h_noidx":1,"z_idx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[MinKey, 5.0)","(5.0, MaxKey]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1_i_compound_1","indexBounds":{"a_compound":["[MinKey, MaxKey]"],"i_compound":["[MinKey, MaxKey]"]}}}]}}}},
    "keys" : 925355,
    "docs" : 300000,
    "sorts":      0,
    "plans":     10,
    "rows" :     17},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$all":[1,6]}},{"c_idx":{"$exists":true}},{"a_compound":{"$elemMatch":{"$exists":true}}}],"h_compound":{"$lte":7}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_compound_1","indexBounds":{"h_compound":["[-inf, 7.0]"]}}},
    "keys" :   8000,
    "docs" :   8000,
    "sorts":      0,
    "plans":     10,
    "rows" :   8000},

{">>>pipeline": [{"$match":{"$or":[{"$and":[{"a_compound":{"$exists":true}},{"i_idx":{"$exists":true}}]},{"$and":[{"a_compound":{"$exists":false}},{"z_idx":{"$eq":16}}]},{"k_compound":{"$lte":4}}],"h_noidx":{"$gte":13},"k_compound":{"$nin":[17,7,7]}}},{"$project":{"a_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MinKey, MaxKey]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[16.0, 16.0]"]}}},{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[-inf, 4.0]"]}}]}}},
    "keys" : 100500,
    "docs" : 200000,
    "sorts":      0,
    "plans":     11,
    "rows" :  86900},

{">>>pipeline": [{"$match":{"$or":[{"i_compound":{"$lte":7}},{"a_compound":{"$in":[20,12]}},{"a_idx":{"$exists":false}}],"a_compound":{"$in":[5,20]},"k_compound":{"$nin":[10,7,20]}}},{"$sort":{"c_idx":-1,"z_idx":1}},{"$limit":126}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"IXSCAN","indexName":"a_compound_1_i_compound_1","indexBounds":{"a_compound":["[5.0, 5.0]","[20.0, 20.0]"],"i_compound":["[-inf, 7.0]"]}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[null, null]"]}}},{"stage":"IXSCAN","indexName":"a_compound_1_i_compound_1","indexBounds":{"a_compound":["[12.0, 12.0]","[20.0, 20.0]"],"i_compound":["[MinKey, MaxKey]"]}}]}}},
    "keys" :   2006,
    "docs" :   2001,
    "sorts":   5480,
    "plans":     13,
    "rows" :    126},

{">>>pipeline": [{"$match":{"$or":[{"k_compound":{"$exists":true}},{"a_idx":{"$all":[7,9,13,10]}},{"c_compound":{"$nin":[17,13]}}],"a_compound":{"$lte":14}}},{"$sort":{"d_idx":1}},{"$skip":52}],
    "winningPlan": {"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     13,
    "rows" :  99948},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$all":[5,2]}},{"a_compound":{"$all":[9,10]}}],"a_compound":{"$gt":3}}},{"$sort":{"h_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     12,
    "rows" :   3457},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[9,15,13]}},{"i_compound":{"$lte":12}}],"h_compound":{"$nin":[15,20,14]}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_compound_1","indexBounds":{"h_compound":["[MinKey, 14.0)","(14.0, 15.0)","(15.0, 20.0)","(20.0, MaxKey]"]}}},
    "keys" :  97003,
    "docs" :  97000,
    "sorts":      0,
    "plans":     11,
    "rows" :  96987},

{">>>pipeline": [{"$match":{"$nor":[{"z_compound":{"$exists":false}},{"a_compound":{"$all":[10,16,15]}}],"a_compound":{"$all":[3,3]},"a_idx":{"$nin":[4,18,17]}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[3.0, 3.0]"]}}},
    "keys" :  25786,
    "docs" :  25786,
    "sorts":      0,
    "plans":     13,
    "rows" :  22903},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$in":[8,1,17,15,3]}},{"k_idx":{"$lt":1}},{"a_idx":{"$elemMatch":{"$in":[16,8,3]}}}],"$or":[{"$and":[{"k_idx":{"$nin":[7,5,19,20]}},{"a_idx":{"$all":[16,15,10]}}]},{"z_idx":{"$exists":true}},{"$or":[{"a_compound":{"$all":[14,11,4,12]}},{"$nor":[{"a_compound":{"$all":[2,16]}},{"a_idx":{"$all":[3,3]}}]},{"a_compound":{"$elemMatch":{"$exists":false}}},{"a_compound":{"$nin":[20,3]}}]},{"a_idx":{"$all":[9,16]}}]}},{"$sort":{"c_idx":1,"h_idx":-1,"z_idx":1}},{"$limit":200},{"$project":{"_id":0,"a_noidx":1,"h_noidx":1,"z_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[-inf, 1.0)"]}}}}},
    "keys" :    100,
    "docs" :    100,
    "sorts":     46,
    "plans":     13,
    "rows" :     13},

{">>>pipeline": [{"$match":{"$nor":[{"d_compound":{"$gte":20}},{"a_compound":{"$all":[4,8]}}],"a_compound":{"$lte":11}}},{"$sort":{"c_idx":-1}},{"$project":{"a_noidx":1,"i_compound":1,"z_compound":1,"z_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      9,
    "rows" :  99165},

{">>>pipeline": [{"$match":{"$or":[{"$and":[{"$or":[{"a_compound":{"$in":[6,19,15]}},{"a_compound":{"$exists":true}},{"c_compound":{"$gte":19}}]},{"z_noidx":{"$exists":false}},{"$and":[{"a_idx":{"$lt":6}},{"a_compound":{"$elemMatch":{"$lte":20}}}]},{"a_idx":{"$all":[8,20]}}]},{"a_idx":{"$exists":true}}],"h_idx":{"$exists":true}}},{"$sort":{"i_idx":-1}},{"$limit":114},{"$project":{"_id":0,"a_noidx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MaxKey, MinKey]"]}}}}},
    "keys" :    114,
    "docs" :    114,
    "sorts":      0,
    "plans":     12,
    "rows" :    114},

{">>>pipeline": [{"$match":{"$or":[{"i_compound":{"$nin":[1,18]}},{"a_idx":{"$all":[19,13,6]}}],"i_compound":{"$nin":[6,17]},"i_idx":{"$lte":12}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[-inf, 12.0]"]}}},
    "keys" :     13,
    "docs" :     13,
    "sorts":      0,
    "plans":     11,
    "rows" :     11},

{">>>pipeline": [{"$match":{"$nor":[{"c_noidx":{"$in":[7,17,9,4]}},{"a_noidx":{"$exists":false}}],"$or":[{"$nor":[{"z_compound":{"$in":[3,12]}},{"a_idx":{"$elemMatch":{"$exists":true,"$gt":20}}}]},{"$nor":[{"i_noidx":{"$gt":9}},{"c_idx":{"$exists":false}}]},{"a_compound":{"$gte":16}},{"$nor":[{"h_idx":{"$in":[20,7]}},{"a_compound":{"$exists":true}}]},{"$and":[{"a_idx":{"$all":[7,4,16,13,3]}},{"$nor":[{"a_idx":{"$elemMatch":{"$exists":false}}},{"a_noidx":{"$elemMatch":{"$gt":3,"$in":[9,2]}}}]}]}],"a_compound":{"$elemMatch":{"$exists":true}}}},{"$sort":{"d_idx":1}},{"$limit":44}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MinKey, MaxKey]"]}}}},
    "keys" :     44,
    "docs" :     44,
    "sorts":      0,
    "plans":     13,
    "rows" :     44},

{">>>pipeline": [{"$match":{"$or":[{"$or":[{"z_compound":{"$nin":[20,5,13,2]}},{"a_compound":{"$in":[2,1]}},{"i_compound":{"$eq":3}}]},{"i_idx":{"$gt":1}}],"k_compound":{"$in":[18,11,1,11]}}},{"$sort":{"i_idx":1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[1.0, 1.0]","[11.0, 11.0]","[18.0, 18.0]"]}}}},
    "keys" :    303,
    "docs" :    300,
    "sorts":   2011,
    "plans":     13,
    "rows" :    300},

{">>>pipeline": [{"$match":{"$or":[{"c_compound":{"$nin":[5,13,14]}},{"$and":[{"h_compound":{"$in":[19,13]}},{"$nor":[{"i_noidx":{"$in":[6,9]}},{"i_compound":{"$ne":9}}]}]}]}},{"$sort":{"z_idx":1}}],
    "winningPlan": {"stage":"SUBPLAN","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      7,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$and":[{"$or":[{"k_compound":{"$gt":17}},{"a_idx":{"$exists":true}},{"a_idx":{"$all":[12,15,2]}}]},{"a_compound":{"$all":[9,1]}},{"h_idx":{"$nin":[16,11,20]}}],"a_noidx":{"$nin":[16,7,13,10]}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[9.0, 9.0]"]}}},
    "keys" :  10013,
    "docs" :  10013,
    "sorts":      0,
    "plans":     14,
    "rows" :   3759},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$elemMatch":{"$in":[2,1,18]}}},{"a_idx":{"$all":[6,3,14,16]}},{"a_idx":{"$all":[12,3]}}],"k_compound":{"$exists":true}}},{"$sort":{"c_idx":-1,"k_idx":1}},{"$project":{"a_noidx":1,"k_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1_a_compound_1","indexBounds":{"k_compound":["[MinKey, MaxKey]"],"a_compound":["[MinKey, MaxKey]"]}}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts": 937686,
    "plans":     12,
    "rows" :  76571},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$eq":12}},{"d_compound":{"$lte":14}}],"h_compound":{"$lte":5},"h_idx":{"$exists":true}}},{"$sort":{"i_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      7,
    "rows" :   6000},

{">>>pipeline": [{"$match":{"$or":[{"h_idx":{"$nin":[19,10,4,8]}},{"a_compound":{"$elemMatch":{"$exists":true}}},{"a_idx":{"$all":[17,4,1,6,18]}},{"a_idx":{"$exists":true}}],"a_idx":{"$in":[14,3,6]}}},{"$project":{"_id":0,"a_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[3.0, 3.0]","[6.0, 6.0]","[14.0, 14.0]"]}}}},
    "keys" :  37662,
    "docs" :  35582,
    "sorts":      0,
    "plans":     11,
    "rows" :  35582},

{">>>pipeline": [{"$match":{"$nor":[{"k_compound":{"$exists":false}},{"k_compound":{"$gt":13}},{"a_compound":{"$all":[13,1,18,6,14]}},{"a_idx":{"$elemMatch":{"$exists":false,"$in":[4,14]}}}],"a_idx":{"$all":[2,8]},"a_noidx":{"$exists":true}}},{"$limit":248}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[MinKey, 13.0]","(inf, MaxKey]"]}}}},
    "keys" :   1401,
    "docs" :   1400,
    "sorts":      0,
    "plans":     15,
    "rows" :     34},

{">>>pipeline": [{"$match":{"$nor":[{"a_idx":{"$elemMatch":{"$in":[5,14]}}},{"a_compound":{"$all":[12,17,13]}}],"a_compound":{"$lt":4},"z_noidx":{"$in":[1,11,16]}}},{"$sort":{"z_idx":1}},{"$limit":56}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MinKey, MaxKey]"]}}}},
    "keys" :     61,
    "docs" :     61,
    "sorts":      0,
    "plans":     11,
    "rows" :     56},

{">>>pipeline": [{"$match":{"$nor":[{"a_idx":{"$ne":1}},{"i_idx":{"$nin":[10,6,12]}},{"$nor":[{"a_compound":{"$elemMatch":{"$exists":true,"$in":[12,18,3,11,18],"$ne":4,"$nin":[17,17,9,20]}}},{"c_compound":{"$ne":6}}]}],"d_compound":{"$exists":true}}},{"$project":{"a_compound":1,"h_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[6.0, 6.0]","[10.0, 10.0]","[12.0, 12.0]"]}}}},
    "keys" :      6,
    "docs" :      3,
    "sorts":      0,
    "plans":      8,
    "rows" :      1},

{">>>pipeline": [{"$match":{"$nor":[{"i_compound":{"$in":[4,18]}},{"a_compound":{"$elemMatch":{"$exists":false}}},{"a_compound":{"$all":[18,15,10]}},{"a_compound":{"$exists":false}}],"a_noidx":{"$lt":3},"d_idx":{"$gt":4}}},{"$sort":{"i_idx":1}},{"$limit":3}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MinKey, MaxKey]"]}}}},
    "keys" :     10,
    "docs" :     10,
    "sorts":      0,
    "plans":     14,
    "rows" :      3},

{">>>pipeline": [{"$match":{"a_compound":{"$gte":3},"k_compound":{"$nin":[6,9,8,11]}}},{"$sort":{"i_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :  99599},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$elemMatch":{"$ne":7,"$nin":[17,17,1]}}},{"$and":[{"a_idx":{"$all":[7,13,19,10,5]}},{"z_compound":{"$exists":true}},{"$nor":[{"a_idx":{"$nin":[12,20,15,20]}},{"a_compound":{"$gte":19}}]},{"a_compound":{"$elemMatch":{"$in":[4,13]}}}]}],"a_compound":{"$gte":20},"z_idx":{"$exists":true}}},{"$sort":{"a_idx":1}},{"$limit":211},{"$project":{"z_compound":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" :    213,
    "docs" :    213,
    "sorts":      0,
    "plans":     14,
    "rows" :    211},

{">>>pipeline": [{"$match":{"$or":[{"c_idx":{"$lte":3}},{"a_compound":{"$all":[18,17,9,6,5]}},{"a_compound":{"$lte":10}}],"a_noidx":{"$lte":4},"i_noidx":{"$nin":[6,17]},"z_noidx":{"$lte":17}}},{"$sort":{"a_idx":-1}},{"$limit":231}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}}},
    "keys" :    234,
    "docs" :    234,
    "sorts":      0,
    "plans":     11,
    "rows" :    231},

{">>>pipeline": [{"$match":{"$and":[{"$or":[{"a_compound":{"$exists":true}},{"a_compound":{"$elemMatch":{"$exists":true,"$gte":20,"$lt":11,"$lte":6}}},{"z_idx":{"$nin":[14,16]}}]},{"a_compound":{"$gt":20}}],"k_compound":{"$exists":true}}},{"$sort":{"z_idx":1}},{"$project":{"c_compound":1,"k_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     14,
    "rows" :  99979},

{">>>pipeline": [{"$match":{"$nor":[{"h_idx":{"$in":[4,12]}},{"a_idx":{"$all":[10,13,17]}}],"$or":[{"a_compound":{"$exists":true}},{"d_compound":{"$exists":false}},{"a_idx":{"$in":[13,14,5]}},{"c_compound":{"$ne":13}},{"$or":[{"i_compound":{"$in":[10,7,7,4]}},{"c_compound":{"$eq":7}}]}],"i_compound":{"$nin":[4,8]}}},{"$sort":{"c_idx":-1}},{"$limit":81}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MaxKey, MinKey]"]}}}},
    "keys" :     81,
    "docs" :     81,
    "sorts":      0,
    "plans":     13,
    "rows" :     81},

{">>>pipeline": [{"$match":{"$and":[{"$or":[{"a_idx":{"$all":[8,1]}},{"a_compound":{"$exists":true}},{"h_idx":{"$exists":false}},{"c_compound":{"$exists":false}},{"a_idx":{"$in":[14,6,4]}}]},{"a_noidx":{"$nin":[15,12]}}],"$or":[{"$and":[{"i_noidx":{"$nin":[7,10,8,15]}},{"a_idx":{"$elemMatch":{"$gte":9}}}]},{"c_compound":{"$nin":[15,5]}}],"a_compound":{"$in":[5,18]}}},{"$sort":{"h_idx":1,"z_idx":-1}},{"$limit":211},{"$skip":7}],
    "winningPlan": {"stage":"SKIP","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[5.0, 5.0]","[18.0, 18.0]"]}}}}},
    "keys" :  13530,
    "docs" :  13498,
    "sorts":  79144,
    "plans":     14,
    "rows" :    204},

{">>>pipeline": [{"$match":{"$or":[{"$and":[{"i_compound":{"$nin":[10,10]}},{"a_noidx":{"$all":[15,15,2]}}]},{"a_compound":{"$lt":5}}],"k_compound":{"$exists":true}}},{"$sort":{"z_idx":-1}},{"$skip":99}],
    "winningPlan": {"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      9,
    "rows" :  97774},

{">>>pipeline": [{"$match":{"$nor":[{"k_compound":{"$in":[19,10,8]}},{"a_noidx":{"$ne":18}}],"$or":[{"h_idx":{"$exists":false}},{"$nor":[{"i_compound":{"$eq":12}},{"z_idx":{"$exists":true}}]},{"a_compound":{"$all":[16,16]}},{"a_idx":{"$exists":true}}],"a_compound":{"$in":[1,4,12,14]}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1_a_compound_1","indexBounds":{"k_compound":["[MinKey, 8.0)","(8.0, 10.0)","(10.0, 19.0)","(19.0, MaxKey]"],"a_compound":["[1.0, 1.0]","[4.0, 4.0]","[12.0, 12.0]","[14.0, 14.0]"]}}},
    "keys" :  66550,
    "docs" :  57375,
    "sorts":      0,
    "plans":     12,
    "rows" :    487},

{">>>pipeline": [{"$match":{"$and":[{"a_idx":{"$lte":10}},{"a_idx":{"$lte":2}},{"z_noidx":{"$exists":true}}],"$nor":[{"a_idx":{"$elemMatch":{"$exists":false,"$lte":4}}},{"$or":[{"a_idx":{"$elemMatch":{"$exists":false}}},{"a_noidx":{"$gte":17}}]},{"a_compound":{"$all":[11,1]}},{"k_compound":{"$lt":15}}]}},{"$limit":50}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1_a_compound_1","indexBounds":{"k_compound":["[MinKey, -inf)","[15.0, MaxKey]"],"a_compound":["[MinKey, MaxKey]"]}}}},
    "keys" : 464152,
    "docs" :  98500,
    "sorts":      0,
    "plans":     13,
    "rows" :      0},

{">>>pipeline": [{"$match":{"$or":[{"k_compound":{"$ne":15}},{"a_compound":{"$all":[16,9]}}],"a_compound":{"$elemMatch":{"$in":[16,19,5]}}}},{"$skip":9}],
    "winningPlan": {"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[5.0, 5.0]","[16.0, 16.0]","[19.0, 19.0]"]}}}},
    "keys" :  14531,
    "docs" :  14479,
    "sorts":      0,
    "plans":     11,
    "rows" :  14370},

{">>>pipeline": [{"$match":{"$nor":[{"i_idx":{"$gte":10}},{"a_compound":{"$all":[7,11,19,18,12]}}],"a_compound":{"$elemMatch":{"$lt":2,"$lte":3}}}},{"$sort":{"a_idx":1}},{"$limit":147}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MinKey, 10.0)","(inf, MaxKey]"]}}}},
    "keys" :     11,
    "docs" :     10,
    "sorts":     13,
    "plans":     14,
    "rows" :      5},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$all":[5,8,6]}},{"a_idx":{"$elemMatch":{"$exists":false,"$lt":5}}},{"a_compound":{"$lt":18}}],"a_compound":{"$exists":true}}},{"$sort":{"i_idx":1}},{"$limit":152}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MinKey, MaxKey]"]}}}},
    "keys" :    152,
    "docs" :    152,
    "sorts":      0,
    "plans":     12,
    "rows" :    152},

{">>>pipeline": [{"$match":{"$nor":[{"i_compound":{"$exists":false}},{"c_noidx":{"$in":[20,6]}},{"a_compound":{"$all":[2,6,20]}}],"a_idx":{"$elemMatch":{"$gte":2,"$in":[5,13,7]}}}},{"$sort":{"i_idx":1,"k_idx":1}},{"$limit":64},{"$project":{"a_noidx":1,"k_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[5.0, 5.0]","[7.0, 7.0]","[13.0, 13.0]"]}}}}},
    "keys" :  23788,
    "docs" :  23421,
    "sorts": 120826,
    "plans":     11,
    "rows" :     64},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$elemMatch":{"$exists":true}}},{"a_compound":{"$all":[11,15,14]}}],"a_compound":{"$in":[2,1,19]}}},{"$sort":{"k_idx":1}},{"$limit":122}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MinKey, MaxKey]"]}}}},
    "keys" :    148,
    "docs" :    148,
    "sorts":      0,
    "plans":     12,
    "rows" :    122},

{">>>pipeline": [{"$match":{"$nor":[{"a_noidx":{"$exists":false}},{"a_compound":{"$exists":false}},{"d_noidx":{"$nin":[11,6,1]}}],"$or":[{"z_compound":{"$ne":13}},{"a_compound":{"$elemMatch":{"$exists":false,"$in":[18,12],"$lt":6}}},{"a_compound":{"$nin":[15,19,12]}},{"$and":[{"h_compound":{"$exists":false}},{"a_compound":{"$all":[10,1]}}]}],"a_compound":{"$gte":10}}},{"$limit":238}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"IXSCAN","indexName":"z_compound_1","indexBounds":{"z_compound":["[MinKey, 13.0)","(13.0, MaxKey]"]}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1_i_compound_1","indexBounds":{"a_compound":["[10.0, 10.0]"],"i_compound":["[MinKey, MaxKey]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[MinKey, 12.0)","(12.0, 15.0)","(15.0, 19.0)","(19.0, MaxKey]"]}}}]}}},
    "keys" :   1178,
    "docs" :   1178,
    "sorts":      0,
    "plans":     13,
    "rows" :    238},

{">>>pipeline": [{"$match":{"$and":[{"k_compound":{"$gte":9}},{"z_idx":{"$lte":7}},{"z_noidx":{"$in":[2,20,2]}}],"$or":[{"$and":[{"a_compound":{"$nin":[18,10,3,17]}},{"a_noidx":{"$nin":[5,15,15]}}]},{"d_compound":{"$in":[6,5]}},{"h_compound":{"$exists":false}},{"k_compound":{"$in":[18,4,16]}}],"z_noidx":{"$exists":true}}},{"$sort":{"a_idx":-1}},{"$limit":176},{"$project":{"_id":0,"a_idx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}}}},
    "keys" :    649,
    "docs" :    649,
    "sorts":      0,
    "plans":     14,
    "rows" :    176},

{">>>pipeline": [{"$match":{"$and":[{"i_compound":{"$nin":[1,8]}},{"k_noidx":{"$ne":11}},{"z_compound":{"$gt":4}},{"$or":[{"$or":[{"a_compound":{"$elemMatch":{"$nin":[17,1,11]}}},{"a_compound":{"$elemMatch":{"$eq":3,"$exists":true}}},{"a_compound":{"$all":[7,20,17,9]}}]},{"z_idx":{"$nin":[12,3]}}]}]}},{"$limit":118}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_compound_1","indexBounds":{"z_compound":["(4.0, inf]"]}}}},
    "keys" :    118,
    "docs" :    118,
    "sorts":      0,
    "plans":     13,
    "rows" :    118},

{">>>pipeline": [{"$match":{"$nor":[{"i_compound":{"$exists":false}},{"$or":[{"a_idx":{"$gte":12}},{"z_noidx":{"$gte":14}},{"c_compound":{"$eq":19}},{"a_compound":{"$in":[9,17,13]}}]}],"a_compound":{"$elemMatch":{"$exists":true,"$lte":5}},"k_compound":{"$lte":12}}},{"$sort":{"c_idx":1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[-inf, 12.0]"]}}}},
    "keys" :   1300,
    "docs" :   1300,
    "sorts":     37,
    "plans":     12,
    "rows" :     11},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$gt":17}},{"a_idx":{"$gte":8}},{"$and":[{"z_idx":{"$lt":3}},{"$or":[{"a_compound":{"$elemMatch":{"$eq":4}}},{"a_idx":{"$all":[16,12,6]}}]},{"$nor":[{"c_idx":{"$in":[16,10,11,14]}},{"i_compound":{"$in":[14,7]}}]}]}]}},{"$sort":{"d_idx":1}},{"$limit":22},{"$skip":5},{"$project":{"_id":0,"a_compound":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MinKey, MaxKey]"]}}}}}},
    "keys" :  40030,
    "docs" :  40030,
    "sorts":      0,
    "plans":     16,
    "rows" :     17},

{">>>pipeline": [{"$match":{"$and":[{"a_idx":{"$elemMatch":{"$exists":true}}},{"a_compound":{"$exists":true}}],"c_compound":{"$ne":3}}},{"$sort":{"h_idx":-1}},{"$limit":78}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MaxKey, MinKey]"]}}}},
    "keys" :     78,
    "docs" :     78,
    "sorts":      0,
    "plans":      6,
    "rows" :     78},

{">>>pipeline": [{"$match":{"$and":[{"a_idx":{"$exists":true}},{"a_compound":{"$lte":2}}],"$nor":[{"k_noidx":{"$in":[17,1]}},{"a_idx":{"$exists":false}}],"$or":[{"i_compound":{"$nin":[20,3]}},{"a_compound":{"$elemMatch":{"$exists":false}}}],"a_compound":{"$gt":17},"h_compound":{"$ne":16}}},{"$sort":{"a_idx":-1}},{"$limit":186},{"$skip":36}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}}}},
    "keys" :    246,
    "docs" :    246,
    "sorts":      0,
    "plans":     14,
    "rows" :    150},

{">>>pipeline": [{"$match":{"$and":[{"a_idx":{"$nin":[5,19]}},{"a_compound":{"$all":[8,2,8]}}],"$or":[{"a_compound":{"$ne":9}},{"a_idx":{"$all":[5,4,7,18,12]}}],"d_idx":{"$ne":19}}},{"$limit":241}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[8.0, 8.0]"]}}}},
    "keys" :    761,
    "docs" :    761,
    "sorts":      0,
    "plans":     17,
    "rows" :    241},

{">>>pipeline": [{"$match":{"$or":[{"$and":[{"c_compound":{"$exists":true}},{"a_compound":{"$all":[13,14,15,18,4]}}]},{"c_compound":{"$lt":13}}],"a_compound":{"$exists":true},"a_idx":{"$elemMatch":{"$nin":[9,1]}}}},{"$sort":{"c_idx":1,"k_idx":1}},{"$limit":130},{"$skip":60}],
    "winningPlan": {"stage":"SKIP","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, 1.0)","(1.0, 9.0)","(9.0, MaxKey]"]}}}}},
    "keys" : 414424,
    "docs" : 100000,
    "sorts": 586753,
    "plans":     13,
    "rows" :     70},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$in":[13,16]}},{"a_compound":{"$elemMatch":{"$exists":true}}}],"i_compound":{"$exists":true}}},{"$project":{"_id":0,"a_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[13.0, 13.0]","[16.0, 16.0]"]}}}},
    "keys" :   2002,
    "docs" :   2000,
    "sorts":      0,
    "plans":      6,
    "rows" :   2000},

{">>>pipeline": [{"$match":{"$and":[{"$nor":[{"a_compound":{"$exists":false}},{"a_idx":{"$ne":6}},{"z_idx":{"$in":[11,18]}}]},{"k_idx":{"$exists":true}}],"k_compound":{"$lte":12}}},{"$sort":{"c_idx":1}},{"$project":{"_id":0,"a_idx":1,"c_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[-inf, 12.0]"]}}}}},
    "keys" :   1300,
    "docs" :   1300,
    "sorts":    654,
    "plans":      8,
    "rows" :    114},

{">>>pipeline": [{"$match":{"$and":[{"a_idx":{"$nin":[5,5]}},{"$and":[{"a_idx":{"$lt":3}},{"c_compound":{"$ne":20}},{"a_compound":{"$in":[4,12,2,16]}},{"k_idx":{"$lte":16}}]}],"$nor":[{"d_compound":{"$exists":false}},{"a_noidx":{"$nin":[12,12,14]}},{"a_idx":{"$all":[20,6,11]}}],"i_idx":{"$exists":true}}},{"$sort":{"i_idx":-1,"z_idx":1}},{"$project":{"_id":0,"a_idx":1,"c_idx":1,"d_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[-inf, 16.0]"]}}}}},
    "keys" :   1700,
    "docs" :   1700,
    "sorts":    958,
    "plans":     11,
    "rows" :    158},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$all":[4,2]}},{"a_compound":{"$exists":true}},{"k_idx":{"$nin":[1,1]}},{"$or":[{"a_compound":{"$elemMatch":{"$eq":14}}},{"a_compound":{"$all":[4,3,2,13]}},{"k_compound":{"$exists":false}}]}],"$or":[{"a_idx":{"$in":[13,11]}},{"i_compound":{"$nin":[19,12]}}]}},{"$project":{"_id":0,"a_compound":1,"i_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[13.0, 13.0]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[null, null]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[14.0, 14.0]"]}}}]}}},
    "keys" :   2000,
    "docs" :   3000,
    "sorts":      0,
    "plans":     21,
    "rows" :    326},

{">>>pipeline": [{"$match":{"$and":[{"a_idx":{"$in":[17,10]}},{"$and":[{"d_compound":{"$exists":true}},{"$or":[{"a_idx":{"$eq":7}},{"c_idx":{"$nin":[7,3]}},{"k_idx":{"$exists":false}}]},{"k_idx":{"$exists":true}}]}],"$or":[{"$or":[{"i_compound":{"$gte":5}},{"a_idx":{"$all":[19,6,8]}}]},{"z_compound":{"$in":[6,10,16]}},{"a_compound":{"$all":[8,19,3]}}],"a_noidx":{"$gt":13}}},{"$sort":{"c_idx":-1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[10.0, 10.0]","[17.0, 17.0]"]}}}},
    "keys" :   2009,
    "docs" :   2006,
    "sorts":  17250,
    "plans":     15,
    "rows" :   2005},

{">>>pipeline": [{"$match":{"$nor":[{"i_idx":{"$exists":false}},{"$nor":[{"a_compound":{"$all":[20,3,20,16]}},{"k_compound":{"$gte":6}}]},{"k_idx":{"$exists":false}},{"z_noidx":{"$gt":9}}],"a_noidx":{"$exists":true},"z_compound":{"$exists":true}}},{"$project":{"i_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_compound_1","indexBounds":{"z_compound":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     13,
    "rows" :  99389},

{">>>pipeline": [{"$match":{"a_idx":{"$gt":9},"z_compound":{"$lte":12}}},{"$sort":{"z_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      4,
    "rows" :  99990},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$elemMatch":{"$in":[12,16,4],"$ne":3}}},{"a_compound":{"$all":[4,8,10]}}],"a_compound":{"$lte":14},"a_idx":{"$lt":4}}},{"$sort":{"i_idx":-1,"k_idx":1}},{"$project":{"_id":0,"a_compound":1,"a_noidx":1,"d_noidx":1,"k_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[-inf, 4.0)"]}}}}},
    "keys" : 119084,
    "docs" :  92730,
    "sorts": 969474,
    "plans":     11,
    "rows" :  78968},

{">>>pipeline": [{"$match":{"$and":[{"$or":[{"a_compound":{"$all":[17,9]}},{"a_compound":{"$elemMatch":{"$nin":[18,5]}}},{"i_compound":{"$nin":[13,1]}},{"c_idx":{"$ne":14}}]},{"k_compound":{"$lt":3}}]}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[-inf, 3.0)"]}}},
    "keys" :    300,
    "docs" :    300,
    "sorts":      0,
    "plans":     11,
    "rows" :    300},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[15,5,3,8]}},{"d_idx":{"$eq":7}},{"k_idx":{"$in":[14,7,18,12]}}],"a_compound":{"$elemMatch":{"$lte":17}},"a_noidx":{"$gt":19}}},{"$sort":{"d_idx":1,"i_idx":-1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[-inf, 17.0]"]}}}},
    "keys" : 197941,
    "docs" : 100000,
    "sorts": 1112458,
    "plans":     14,
    "rows" :  89685},

{">>>pipeline": [{"$match":{"$nor":[{"k_noidx":{"$in":[14,9]}},{"a_compound":{"$all":[13,18,14,4]}}],"c_compound":{"$exists":true}}},{"$limit":36}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_compound_1_d_compound_1","indexBounds":{"c_compound":["[MinKey, MaxKey]"],"d_compound":["[MinKey, MaxKey]"]}}}},
    "keys" :     36,
    "docs" :     36,
    "sorts":      0,
    "plans":     12,
    "rows" :     36},

{">>>pipeline": [{"$match":{"$nor":[{"k_compound":{"$ne":1}},{"a_compound":{"$all":[9,15,16]}}],"a_noidx":{"$exists":true}}},{"$project":{"_id":0,"a_idx":1,"i_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[1.0, 1.0]"]}}}},
    "keys" :    100,
    "docs" :    100,
    "sorts":      0,
    "plans":     12,
    "rows" :    100},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$all":[12,13]}},{"z_compound":{"$exists":true}},{"a_compound":{"$elemMatch":{"$nin":[1,16]}}},{"a_compound":{"$nin":[6,7]}}],"a_compound":{"$lt":2}}},{"$sort":{"z_idx":-1}},{"$limit":64},{"$skip":39},{"$project":{"a_noidx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MaxKey, MinKey]"]}}}}}},
    "keys" :    330,
    "docs" :    330,
    "sorts":      0,
    "plans":     13,
    "rows" :     25},

{">>>pipeline": [{"$match":{"$or":[{"$and":[{"z_compound":{"$nin":[15,10]}},{"a_compound":{"$in":[1,15,19]}},{"a_idx":{"$exists":true}}]},{"a_idx":{"$all":[9,16]}},{"h_idx":{"$nin":[14,18,11]}}],"a_compound":{"$gt":4},"a_idx":{"$in":[4,5,15]}}},{"$sort":{"d_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     14,
    "rows" :  27799},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$in":[19,12,15]}},{"a_compound":{"$all":[6,20]}},{"a_compound":{"$exists":false}}],"a_compound":{"$all":[2,12]},"z_idx":{"$nin":[4,6,13]}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[12.0, 12.0]","[15.0, 15.0]","[19.0, 19.0]"]}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1_i_compound_1","indexBounds":{"a_compound":["[6.0, 6.0]"],"i_compound":["[MinKey, MaxKey]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[null, null]"]}}}]}},
    "keys" :  13876,
    "docs" :  13883,
    "sorts":      0,
    "plans":     15,
    "rows" :    924},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$eq":7}},{"$and":[{"c_idx":{"$gte":2}},{"c_compound":{"$nin":[14,17]}},{"$nor":[{"a_idx":{"$all":[5,2]}},{"d_compound":{"$lt":3}}]},{"i_idx":{"$lte":14}}]}],"k_compound":{"$nin":[13,5,3,3]}}},{"$project":{"_id":0,"a_idx":1,"c_compound":1,"k_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[MinKey, 7.0)","(7.0, MaxKey]"]}}}},
    "keys" : 458685,
    "docs" : 100000,
    "sorts":      0,
    "plans":     14,
    "rows" :  89444},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[3,14,9,6]}},{"h_noidx":{"$gt":15}},{"a_compound":{"$eq":12}}],"d_idx":{"$exists":true}}},{"$sort":{"h_idx":-1}},{"$limit":18}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MaxKey, MinKey]"]}}}},
    "keys" :  84018,
    "docs" :  84018,
    "sorts":      0,
    "plans":     14,
    "rows" :     18},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$all":[10,12]}},{"a_compound":{"$elemMatch":{"$lte":2}}},{"a_compound":{"$elemMatch":{"$exists":true}}},{"a_idx":{"$gt":8}}],"i_compound":{"$in":[2,7,11,14]}}},{"$sort":{"z_idx":1}},{"$limit":115}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_compound_1","indexBounds":{"i_compound":["[2.0, 2.0]","[7.0, 7.0]","[11.0, 11.0]","[14.0, 14.0]"]}}}},
    "keys" :      8,
    "docs" :      4,
    "sorts":     10,
    "plans":     13,
    "rows" :      4},

{">>>pipeline": [{"$match":{"a_compound":{"$gte":2},"a_idx":{"$lte":7}}},{"$sort":{"z_idx":-1}},{"$limit":126},{"$project":{"k_noidx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MaxKey, MinKey]"]}}}}},
    "keys" :    148,
    "docs" :    148,
    "sorts":      0,
    "plans":      4,
    "rows" :    126},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[3,5,15]}},{"a_idx":{"$elemMatch":{"$eq":5,"$lt":4,"$lte":20}}}],"a_noidx":{"$lte":3},"h_idx":{"$ne":5}}},{"$sort":{"d_idx":1}},{"$project":{"c_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     10,
    "rows" :  91664},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[10,9,5]}},{"h_idx":{"$ne":4}},{"k_compound":{"$exists":false}}],"a_noidx":{"$nin":[16,7,2,9]}}},{"$sort":{"a_idx":-1}},{"$limit":168},{"$project":{"a_compound":1,"c_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[4.0, 4.0]"]}}}}},
    "keys" :   1000,
    "docs" :   1000,
    "sorts":   4213,
    "plans":     14,
    "rows" :    168},

{">>>pipeline": [{"$match":{"$and":[{"i_noidx":{"$nin":[2,20]}},{"k_compound":{"$nin":[7,18]}},{"$and":[{"c_compound":{"$nin":[15,5,8]}},{"k_compound":{"$in":[18,2,6,7]}}]},{"$and":[{"a_noidx":{"$in":[15,1,1]}},{"a_compound":{"$lte":16}}]}],"a_noidx":{"$elemMatch":{"$lte":10}},"c_idx":{"$nin":[15,20,11,11,14]}}},{"$sort":{"a_idx":-1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[2.0, 2.0]","[6.0, 6.0]"]}}}},
    "keys" :    202,
    "docs" :    200,
    "sorts":    431,
    "plans":      8,
    "rows" :     80},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[2,18,15]}},{"a_noidx":{"$exists":false}}],"a_idx":{"$exists":true}}},{"$sort":{"a_idx":-1}},{"$limit":209}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}}},
    "keys" :    209,
    "docs" :    209,
    "sorts":      0,
    "plans":      9,
    "rows" :    209},

{">>>pipeline": [{"$match":{"$and":[{"i_idx":{"$nin":[16,9,7,3,8]}},{"$or":[{"a_compound":{"$all":[14,5,1,10]}},{"h_compound":{"$gte":6}}]}],"k_compound":{"$gte":1}}},{"$sort":{"h_idx":1}},{"$project":{"_id":0,"a_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     14,
    "rows" :  93996},

{">>>pipeline": [{"$match":{"a_compound":{"$lt":19},"c_compound":{"$nin":[8,12,2,9]}}},{"$sort":{"h_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$and":[{"$or":[{"i_compound":{"$exists":true}},{"i_compound":{"$nin":[8,5,6]}}]},{"$or":[{"a_compound":{"$all":[5,6,7,14]}},{"a_idx":{"$elemMatch":{"$exists":true}}},{"a_idx":{"$all":[15,17]}}]}],"a_noidx":{"$elemMatch":{"$exists":true,"$in":[9,12]}}}},{"$sort":{"k_idx":1}},{"$project":{"_id":0,"a_noidx":1,"i_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     14,
    "rows" :  11013},

{">>>pipeline": [{"$match":{"$nor":[{"k_compound":{"$nin":[3,9]}},{"d_compound":{"$gt":18}},{"a_compound":{"$all":[19,6,6]}}],"a_noidx":{"$elemMatch":{"$gte":6,"$lt":19}}}},{"$limit":55}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[3.0, 3.0]","[9.0, 9.0]"]}}}},
    "keys" :    154,
    "docs" :    153,
    "sorts":      0,
    "plans":     13,
    "rows" :     55},

{">>>pipeline": [{"$match":{"$and":[{"k_compound":{"$nin":[5,15]}},{"$nor":[{"a_idx":{"$elemMatch":{"$exists":false}}},{"a_compound":{"$all":[20,4,16,10]}},{"$or":[{"a_noidx":{"$eq":7}},{"a_noidx":{"$elemMatch":{"$exists":false}}},{"a_idx":{"$all":[16,19,14]}}]}]}],"$or":[{"a_idx":{"$all":[17,3,17]}},{"a_compound":{"$elemMatch":{"$exists":true,"$lt":15}}}]}},{"$sort":{"d_idx":-1,"i_idx":1,"z_idx":1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1_a_compound_1","indexBounds":{"k_compound":["[MinKey, 5.0)","(5.0, 15.0)","(15.0, MaxKey]"],"a_compound":["[MinKey, MaxKey]"]}}}},
    "keys" : 468251,
    "docs" :  99800,
    "sorts": 1110568,
    "plans":     12,
    "rows" :  89544},

{">>>pipeline": [{"$match":{"$or":[{"d_compound":{"$exists":true}},{"a_compound":{"$exists":true}},{"$or":[{"a_compound":{"$in":[15,2]}},{"h_idx":{"$exists":false}},{"a_idx":{"$all":[7,14]}}]}],"a_idx":{"$elemMatch":{"$exists":true,"$in":[9,10]}}}},{"$skip":3},{"$project":{"d_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[9.0, 9.0]","[10.0, 10.0]"]}}}}},
    "keys" :  11021,
    "docs" :  11019,
    "sorts":      0,
    "plans":     11,
    "rows" :  11016},

{">>>pipeline": [{"$match":{"$or":[{"c_compound":{"$eq":11}},{"a_compound":{"$all":[9,18]}},{"a_compound":{"$nin":[10,5]}}],"a_compound":{"$gte":20}}},{"$sort":{"a_idx":1,"i_idx":-1}},{"$project":{"_id":0,"c_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[20.0, inf]"]}}}}},
    "keys" : 269000,
    "docs" :  99980,
    "sorts": 1069529,
    "plans":     11,
    "rows" :  86478},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[6,9,11]}},{"k_compound":{"$eq":4}},{"k_noidx":{"$eq":6}}],"a_compound":{"$exists":true}}},{"$limit":211}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[MinKey, 4.0)","(4.0, MaxKey]"]}}}},
    "keys" :    211,
    "docs" :    211,
    "sorts":      0,
    "plans":     14,
    "rows" :    211},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$nin":[1,6,16]}},{"a_compound":{"$all":[3,9,12]}}],"a_compound":{"$elemMatch":{"$eq":6}}}},{"$sort":{"c_idx":1}},{"$limit":57},{"$project":{"_id":0,"a_idx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" :    477,
    "docs" :    477,
    "sorts":      0,
    "plans":     13,
    "rows" :     57},

{">>>pipeline": [{"$match":{"$or":[{"d_idx":{"$gte":11}},{"$and":[{"a_idx":{"$all":[3,9,16,17,18,16]}},{"$or":[{"i_noidx":{"$ne":7}},{"c_idx":{"$exists":false}},{"a_noidx":{"$nin":[18,18,17]}}]}]},{"k_idx":{"$eq":7}},{"a_idx":{"$nin":[14,4]}}],"c_compound":{"$exists":true},"i_compound":{"$nin":[17,17]}}},{"$sort":{"i_idx":-1}},{"$limit":213},{"$project":{"_id":0,"z_compound":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MaxKey, MinKey]"]}}}}},
    "keys" :    260,
    "docs" :    260,
    "sorts":      0,
    "plans":     12,
    "rows" :    213},

{">>>pipeline": [{"$match":{"$or":[{"c_idx":{"$nin":[11,6]}},{"a_compound":{"$all":[5,19,4,2]}}],"c_compound":{"$lte":1}}},{"$sort":{"a_idx":-1}},{"$limit":174},{"$project":{"_id":0,"a_idx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}}}},
    "keys" :    174,
    "docs" :    174,
    "sorts":      0,
    "plans":     12,
    "rows" :    174},

{">>>pipeline": [{"$match":{"$and":[{"$or":[{"a_idx":{"$nin":[5,11,15]}},{"a_compound":{"$all":[5,18,7]}},{"a_idx":{"$elemMatch":{"$in":[20,15,19]}}}]},{"$or":[{"z_compound":{"$in":[8,5,8]}},{"$or":[{"d_compound":{"$gte":9}},{"a_idx":{"$all":[16,12,6]}},{"a_idx":{"$elemMatch":{"$gte":14,"$nin":[12,9]}}},{"i_idx":{"$exists":true}},{"i_idx":{"$exists":false}}]}]},{"$or":[{"k_compound":{"$in":[2,16,8,7]}},{"k_compound":{"$lte":18}}]}]}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[2.0, 2.0]","[7.0, 7.0]","[8.0, 8.0]","[16.0, 16.0]"]}},{"stage":"IXSCAN","indexName":"k_compound_1_a_compound_1","indexBounds":{"k_compound":["[-inf, 18.0]"],"a_compound":["[MinKey, MaxKey]"]}}]}},
    "keys" :   6785,
    "docs" :   1900,
    "sorts":      0,
    "plans":     21,
    "rows" :   1651},

{">>>pipeline": [{"$match":{"$nor":[{"d_compound":{"$ne":6}},{"z_compound":{"$in":[19,6]}},{"a_idx":{"$nin":[11,20,3]}},{"$nor":[{"a_compound":{"$exists":true}},{"k_idx":{"$exists":false}},{"a_compound":{"$all":[13,13]}},{"d_compound":{"$exists":true}}]}],"a_compound":{"$nin":[14,5,18,14]}}},{"$limit":219},{"$project":{"a_compound":1,"a_noidx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_compound_1_k_compound_1","indexBounds":{"d_compound":["[6.0, 6.0]"],"k_compound":["[MinKey, MaxKey]"]}}}}},
    "keys" :   1188,
    "docs" :   1188,
    "sorts":      0,
    "plans":     15,
    "rows" :    219},

{">>>pipeline": [{"$match":{"$and":[{"a_idx":{"$elemMatch":{"$lt":19}}},{"i_idx":{"$nin":[18,16,18]}},{"a_compound":{"$lt":7}}],"a_compound":{"$elemMatch":{"$eq":17,"$ne":12}},"z_noidx":{"$nin":[7,7,14,2]}}},{"$project":{"_id":0,"a_compound":1,"a_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[17.0, 17.0]"]}}}},
    "keys" :   1000,
    "docs" :   1000,
    "sorts":      0,
    "plans":      6,
    "rows" :    670},

{">>>pipeline": [{"$match":{"k_compound":{"$gt":1}}},{"$sort":{"k_idx":-1}},{"$project":{"_id":0,"a_noidx":1,"c_compound":1,"z_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      3,
    "rows" :  99800},

{">>>pipeline": [{"$match":{"$and":[{"$or":[{"a_compound":{"$all":[14,8,8]}},{"a_compound":{"$nin":[9,1,17,13]}}]},{"$and":[{"z_compound":{"$lte":20}},{"c_idx":{"$nin":[15,4,13]}},{"h_idx":{"$exists":true}}]},{"k_idx":{"$gt":2}}],"a_noidx":{"$gte":12}}},{"$sort":{"z_idx":1}},{"$limit":69}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MinKey, MaxKey]"]}}}},
    "keys" :  38508,
    "docs" :  38508,
    "sorts":      0,
    "plans":     15,
    "rows" :     69},

{">>>pipeline": [{"$match":{"a_compound":{"$gt":2},"z_compound":{"$ne":2}}},{"$sort":{"c_idx":-1}},{"$project":{"a_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :  68050},

{">>>pipeline": [{"$match":{"$nor":[{"z_compound":{"$in":[4,12]}},{"c_compound":{"$in":[9,9,3]}}],"$or":[{"a_compound":{"$gt":1}},{"$and":[{"a_compound":{"$all":[17,16]}},{"k_compound":{"$in":[7,15,17,3]}}]},{"z_idx":{"$ne":18}},{"a_idx":{"$all":[7,20,7]}}],"a_compound":{"$elemMatch":{"$exists":true}},"z_idx":{"$lt":11}}},{"$sort":{"k_idx":-1}},{"$limit":190},{"$project":{"_id":0,"a_noidx":1,"i_idx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MaxKey, MinKey]"]}}}}},
    "keys" :    202,
    "docs" :    202,
    "sorts":      0,
    "plans":     17,
    "rows" :    190},

{">>>pipeline": [{"$match":{"$or":[{"d_idx":{"$in":[3,5,15,7]}},{"i_compound":{"$exists":true}},{"a_idx":{"$all":[14,15,8]}}],"a_compound":{"$in":[13,13,16]},"a_idx":{"$in":[10,3]}}},{"$sort":{"c_idx":-1}},{"$limit":146},{"$project":{"_id":0,"a_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[13.0, 13.0]","[16.0, 16.0]"]}}}}},
    "keys" :   2002,
    "docs" :   2000,
    "sorts":   7007,
    "plans":     14,
    "rows" :    146},

{">>>pipeline": [{"$match":{"k_idx":{"$ne":5},"z_compound":{"$ne":15}}},{"$sort":{"c_idx":1}},{"$limit":77}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MinKey, MaxKey]"]}}}},
    "keys" :     78,
    "docs" :     78,
    "sorts":      0,
    "plans":      4,
    "rows" :     77},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[4,18,16]}},{"a_noidx":{"$nin":[5,2]}},{"c_idx":{"$exists":false}},{"d_idx":{"$in":[16,15]}}],"a_idx":{"$in":[1,15]},"a_noidx":{"$elemMatch":{"$nin":[13,19,11]}}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[1.0, 1.0]","[15.0, 15.0]"]}}},
    "keys" :  45508,
    "docs" :  45134,
    "sorts":      0,
    "plans":     11,
    "rows" :  11760},

{">>>pipeline": [{"$match":{"$and":[{"$or":[{"a_compound":{"$exists":true}},{"k_compound":{"$nin":[14,15,14,13]}},{"a_compound":{"$all":[12,3]}}]},{"k_idx":{"$lte":11}}],"$or":[{"a_idx":{"$lt":9}},{"i_noidx":{"$exists":true}}]}},{"$sort":{"c_idx":1,"z_idx":1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[-inf, 11.0]"]}}}},
    "keys" :   1200,
    "docs" :   1200,
    "sorts":   9708,
    "plans":     10,
    "rows" :   1200},

{">>>pipeline": [{"$match":{"$nor":[{"a_noidx":{"$lt":4}},{"$or":[{"c_noidx":{"$in":[9,11]}},{"a_compound":{"$all":[13,7,2,3]}}]},{"$or":[{"i_compound":{"$lt":4}},{"a_idx":{"$eq":7}},{"a_compound":{"$exists":false}}]}],"h_compound":{"$nin":[19,13,13]}}},{"$sort":{"i_idx":-1,"z_idx":1}},{"$limit":148}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1_i_compound_1","indexBounds":{"a_compound":["[MinKey, MaxKey]"],"i_compound":["[MinKey, -inf)","[4.0, MaxKey]"]}}}},
    "keys" : 468937,
    "docs" :  99996,
    "sorts":  34784,
    "plans":     16,
    "rows" :    148},

{">>>pipeline": [{"$match":{"$and":[{"z_idx":{"$exists":true}},{"$nor":[{"$nor":[{"d_compound":{"$eq":5}},{"h_idx":{"$nin":[3,20]}}]},{"a_compound":{"$exists":false}}]},{"$and":[{"a_compound":{"$elemMatch":{"$nin":[13,18]}}},{"a_noidx":{"$lt":3}}]},{"i_compound":{"$in":[5,10,8,9]}}],"a_idx":{"$elemMatch":{"$nin":[10,11,8]}},"a_noidx":{"$exists":true}}},{"$sort":{"k_idx":1}},{"$limit":55}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_compound_1","indexBounds":{"i_compound":["[5.0, 5.0]","[8.0, 8.0]","[9.0, 9.0]","[10.0, 10.0]"]}}}},
    "keys" :      6,
    "docs" :      4,
    "sorts":      6,
    "plans":     11,
    "rows" :      3},

{">>>pipeline": [{"$match":{"a_compound":{"$elemMatch":{"$exists":true,"$gte":7}},"c_compound":{"$exists":true}}},{"$sort":{"c_idx":-1}},{"$limit":48}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MaxKey, MinKey]"]}}}},
    "keys" :     48,
    "docs" :     48,
    "sorts":      0,
    "plans":      5,
    "rows" :     48},

{">>>pipeline": [{"$match":{"$and":[{"c_noidx":{"$lte":16}},{"k_compound":{"$nin":[15,11,15,3]}}],"$or":[{"i_compound":{"$lte":15}},{"a_idx":{"$all":[3,2,18,12]}},{"a_compound":{"$lte":10}}],"k_idx":{"$lte":3}}},{"$limit":249},{"$project":{"a_idx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[-inf, 3.0]"]}}}}},
    "keys" :    249,
    "docs" :    249,
    "sorts":      0,
    "plans":     13,
    "rows" :    249},

{">>>pipeline": [{"$match":{"$or":[{"$and":[{"a_noidx":{"$exists":true}},{"a_compound":{"$elemMatch":{"$nin":[7,6]}}}]},{"a_compound":{"$nin":[18,19]}}],"k_compound":{"$gte":6}}},{"$sort":{"i_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     12,
    "rows" :  99400},

{">>>pipeline": [{"$match":{"$and":[{"z_compound":{"$nin":[17,17,14]}},{"a_compound":{"$nin":[9,5,13]}},{"$or":[{"k_noidx":{"$in":[10,2,7]}},{"a_idx":{"$in":[7,3,17]}}]}],"$or":[{"c_compound":{"$nin":[2,6]}},{"a_idx":{"$all":[3,16,7]}}],"a_noidx":{"$elemMatch":{"$lt":3}},"c_compound":{"$exists":true}}},{"$sort":{"c_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     17,
    "rows" :  18976},

{">>>pipeline": [{"$match":{"$nor":[{"z_compound":{"$exists":false}},{"c_compound":{"$gte":16}},{"i_noidx":{"$exists":false}},{"$and":[{"d_idx":{"$exists":true}},{"i_idx":{"$lt":10}},{"a_compound":{"$exists":false}}]}],"a_noidx":{"$exists":true},"h_compound":{"$exists":true}}},{"$skip":34}],
    "winningPlan": {"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_compound_1","indexBounds":{"c_compound":["[MinKey, 16.0)","(inf, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      7,
    "rows" :  99966},

{">>>pipeline": [{"$match":{"$or":[{"c_compound":{"$nin":[8,18,13]}},{"$and":[{"k_compound":{"$ne":9}},{"a_compound":{"$gt":6}}]}],"a_compound":{"$elemMatch":{"$nin":[13,14,13,12]}},"a_idx":{"$elemMatch":{"$in":[11,4,13],"$nin":[20,14]}}}},{"$project":{"_id":0,"a_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[4.0, 4.0]","[11.0, 11.0]","[13.0, 13.0]"]}}}},
    "keys" :  19101,
    "docs" :  18952,
    "sorts":      0,
    "plans":     11,
    "rows" :  18952},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$all":[18,15]}},{"a_compound":{"$elemMatch":{"$gte":15,"$nin":[11,16,18,7]}}},{"k_compound":{"$lt":2}}],"i_idx":{"$in":[19,20,5]}}},{"$sort":{"h_idx":-1,"k_idx":-1}},{"$limit":175},{"$project":{"_id":0,"z_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[5.0, 5.0]","[19.0, 19.0]","[20.0, 20.0]"]}}}}},
    "keys" :      5,
    "docs" :      3,
    "sorts":      3,
    "plans":     10,
    "rows" :      2},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$lte":7}},{"a_compound":{"$elemMatch":{"$exists":false}}},{"a_idx":{"$all":[13,14,10,10]}},{"h_compound":{"$in":[13,14,14]}},{"a_compound":{"$in":[6,20]}}],"a_compound":{"$lt":12}}},{"$sort":{"c_idx":1,"k_idx":-1}},{"$project":{"_id":0,"a_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[-inf, 12.0)"]}}}}},
    "keys" : 191941,
    "docs" : 100000,
    "sorts": 1250995,
    "plans":     12,
    "rows" :  99978},

{">>>pipeline": [{"$match":{"$or":[{"c_idx":{"$lte":19}},{"a_compound":{"$nin":[11,11,5]}},{"a_idx":{"$all":[18,14]}}],"h_compound":{"$nin":[7,6,8]}}},{"$sort":{"d_idx":-1}},{"$limit":237}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MaxKey, MinKey]"]}}}},
    "keys" :    237,
    "docs" :    237,
    "sorts":      0,
    "plans":      8,
    "rows" :    237},

{">>>pipeline": [{"$match":{"a_compound":{"$exists":true},"a_idx":{"$nin":[5,12,4]},"i_compound":{"$gte":20}}},{"$sort":{"h_idx":-1}},{"$project":{"_id":0,"a_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      6,
    "rows" :  70545},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$elemMatch":{"$nin":[18,18,11]}}},{"z_compound":{"$lte":7}},{"d_compound":{"$gte":5}}]}},{"$sort":{"d_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      7,
    "rows" :  49941},

{">>>pipeline": [{"$match":{"$and":[{"$and":[{"a_compound":{"$elemMatch":{"$exists":true}}},{"h_compound":{"$exists":true}}]},{"$or":[{"c_idx":{"$eq":7}},{"a_idx":{"$all":[19,8,13,3]}},{"a_idx":{"$all":[3,7]}},{"a_compound":{"$ne":7}}]}],"a_idx":{"$nin":[20,3]}}},{"$project":{"_id":0,"h_compound":1,"k_idx":1,"k_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, 3.0)","(3.0, 20.0)","(20.0, MaxKey]"]}}}},
    "keys" : 442157,
    "docs" : 100000,
    "sorts":      0,
    "plans":     14,
    "rows" :  64878},

{">>>pipeline": [{"$match":{"$or":[{"$or":[{"i_compound":{"$exists":true}},{"$and":[{"a_noidx":{"$elemMatch":{"$lte":18,"$nin":[17,13,16,19,1]}}},{"a_noidx":{"$lte":15}},{"a_idx":{"$elemMatch":{"$gte":20}}}]}]},{"h_idx":{"$in":[1,19,20]}},{"a_idx":{"$lt":12}},{"a_compound":{"$elemMatch":{"$exists":false}}}],"a_compound":{"$gte":10},"k_compound":{"$exists":true}}},{"$limit":70}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[10.0, inf]"]}}}},
    "keys" :     70,
    "docs" :     70,
    "sorts":      0,
    "plans":     13,
    "rows" :     70},

{">>>pipeline": [{"$match":{"$nor":[{"d_idx":{"$exists":false}},{"h_noidx":{"$gte":3}},{"a_compound":{"$elemMatch":{"$nin":[16,2,1]}}},{"$nor":[{"a_compound":{"$all":[1,10,5,20,2]}},{"a_compound":{"$lte":3}},{"z_idx":{"$exists":true}}]}],"a_compound":{"$nin":[3,10]}}},{"$limit":234},{"$project":{"a_compound":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[MinKey, 3.0)","(3.0, 10.0)","(10.0, MaxKey]"]}}}}},
    "keys" : 442150,
    "docs" : 100000,
    "sorts":      0,
    "plans":     13,
    "rows" :      1},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$nin":[5,11]}},{"a_compound":{"$all":[7,11,1]}},{"z_noidx":{"$gt":3}}],"k_compound":{"$gt":8}}},{"$sort":{"c_idx":1,"h_idx":1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[5.0, 5.0]","[11.0, 11.0]"]}}}},
    "keys" :  13534,
    "docs" :  13510,
    "sorts":  96823,
    "plans":     14,
    "rows" :   9528},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$nin":[15,14]}},{"a_idx":{"$all":[11,9,6]}}],"a_idx":{"$elemMatch":{"$eq":3}}}},{"$sort":{"a_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":     10,
    "rows" :  25443},

{">>>pipeline": [{"$match":{"$nor":[{"d_idx":{"$exists":false}},{"a_compound":{"$all":[8,9,2]}}],"a_idx":{"$eq":15},"k_idx":{"$gte":1}}},{"$project":{"_id":0,"a_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[15.0, 15.0]"]}}}},
    "keys" :   1000,
    "docs" :   1000,
    "sorts":      0,
    "plans":     11,
    "rows" :   1000},

{">>>pipeline": [{"$match":{"$or":[{"$and":[{"a_noidx":{"$elemMatch":{"$exists":false}}},{"a_compound":{"$all":[6,14,7]}},{"a_idx":{"$all":[12,17]}},{"k_compound":{"$exists":true}}]},{"k_compound":{"$gt":2}}],"z_compound":{"$in":[6,6,18]}}},{"$sort":{"c_idx":-1,"d_idx":1,"h_idx":1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_compound_1","indexBounds":{"z_compound":["[6.0, 6.0]","[18.0, 18.0]"]}}}},
    "keys" :    974,
    "docs" :    973,
    "sorts":   7623,
    "plans":     12,
    "rows" :    968},

{">>>pipeline": [{"$match":{"$or":[{"k_compound":{"$exists":true}},{"a_idx":{"$in":[10,13,17]}},{"a_idx":{"$all":[17,16,11,1]}}],"a_compound":{"$elemMatch":{"$eq":17,"$lte":17}}}},{"$sort":{"a_idx":1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[17.0, 17.0]"]}}}},
    "keys" :   1000,
    "docs" :   1000,
    "sorts":   7908,
    "plans":     13,
    "rows" :   1000},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$elemMatch":{"$nin":[17,12,15,5]}}},{"a_compound":{"$lte":12}}],"$or":[{"a_compound":{"$all":[5,1,19,11,12]}},{"a_idx":{"$nin":[8,4]}},{"i_idx":{"$lte":19}},{"a_compound":{"$elemMatch":{"$gte":11,"$in":[6,12]}}}]}},{"$project":{"a_compound":1,"a_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[MinKey, 5.0)","(5.0, 12.0)","(12.0, 15.0)","(15.0, 17.0)","(17.0, MaxKey]"]}}}},
    "keys" : 453417,
    "docs" : 100000,
    "sorts":      0,
    "plans":     14,
    "rows" :  73736},

{">>>pipeline": [{"$match":{"$or":[{"c_compound":{"$gt":12}},{"$or":[{"a_idx":{"$in":[13,15]}},{"d_idx":{"$nin":[18,2]}},{"a_compound":{"$elemMatch":{"$exists":false,"$lt":12}}},{"a_compound":{"$exists":false}}]},{"i_compound":{"$nin":[4,11]}}],"a_noidx":{"$elemMatch":{"$in":[5,11],"$lt":8}}}},{"$sort":{"d_idx":-1}},{"$project":{"_id":0,"z_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     11,
    "rows" :  12528},

{">>>pipeline": [{"$match":{"a_compound":{"$elemMatch":{"$lt":8}},"d_compound":{"$nin":[4,10,5]}}},{"$sort":{"a_idx":-1}},{"$limit":168},{"$project":{"a_noidx":1,"z_idx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}}}},
    "keys" :    210,
    "docs" :    210,
    "sorts":      0,
    "plans":      5,
    "rows" :    168},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$elemMatch":{"$eq":15,"$nin":[19,20,2,14]}}},{"i_compound":{"$eq":20}},{"a_compound":{"$all":[11,15]}}],"k_idx":{"$lte":20}}},{"$sort":{"c_idx":1,"d_idx":1,"h_idx":1}},{"$limit":187},{"$project":{"a_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[15.0, 15.0]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[15.0, 15.0]"]}}},{"stage":"IXSCAN","indexName":"i_compound_1_z_compound_1","indexBounds":{"i_compound":["[20.0, 20.0]"],"z_compound":["[MinKey, MaxKey]"]}}]}}}},
    "keys" :   2001,
    "docs" :   3001,
    "sorts":    567,
    "plans":     10,
    "rows" :    101},

{">>>pipeline": [{"$match":{"a_compound":{"$nin":[16,3,16]},"d_compound":{"$exists":true}}},{"$sort":{"a_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :  73385},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$nin":[8,10]}},{"a_idx":{"$nin":[20,9]}}],"$nor":[{"i_idx":{"$lt":19}},{"a_compound":{"$in":[10,15,2]}},{"a_idx":{"$in":[4,10,9,1]}}]}},{"$sort":{"k_idx":1}},{"$limit":199}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MinKey, MaxKey]"]}}}},
    "keys" :   2371,
    "docs" :   2371,
    "sorts":      0,
    "plans":      8,
    "rows" :    199},

{">>>pipeline": [{"$match":{"$and":[{"a_idx":{"$nin":[3,12]}},{"a_idx":{"$gt":14}},{"z_compound":{"$in":[6,8,17,7,2]}},{"$or":[{"a_compound":{"$elemMatch":{"$in":[8,18,4]}}},{"a_compound":{"$gte":15}}]},{"k_idx":{"$nin":[20,4]}}]}},{"$sort":{"k_idx":1}},{"$limit":178}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MinKey, 4.0)","(4.0, 20.0)","(20.0, MaxKey]"]}}}},
    "keys" :    650,
    "docs" :    649,
    "sorts":      0,
    "plans":      9,
    "rows" :    178},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$elemMatch":{"$in":[1,14,7]}}},{"i_compound":{"$exists":false}},{"a_compound":{"$elemMatch":{"$in":[2,12,2,11],"$nin":[13,6]}}},{"c_idx":{"$in":[20,15,13]}}],"a_compound":{"$exists":true}}},{"$limit":128}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[13.0, 13.0]","[15.0, 15.0]","[20.0, 20.0]"]}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[1.0, 1.0]","[2.0, 2.0]","[7.0, 7.0]","[11.0, 11.0]","[12.0, 12.0]","[14.0, 14.0]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_compound_1_z_compound_1","indexBounds":{"i_compound":["[null, null]"],"z_compound":["[MinKey, MaxKey]"]}}}]}}},
    "keys" :    128,
    "docs" :    256,
    "sorts":      0,
    "plans":     12,
    "rows" :    128},

{">>>pipeline": [{"$match":{"$nor":[{"k_idx":{"$lt":8}},{"i_compound":{"$lte":5}},{"a_compound":{"$all":[17,8]}}],"a_noidx":{"$elemMatch":{"$lte":8}}}},{"$sort":{"a_idx":1}},{"$limit":152},{"$project":{"c_compound":1,"z_noidx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" :    154,
    "docs" :    154,
    "sorts":      0,
    "plans":      8,
    "rows" :    152},

{">>>pipeline": [{"$match":{"$or":[{"h_idx":{"$exists":false}},{"a_compound":{"$lte":13}},{"$or":[{"z_compound":{"$exists":false}},{"h_idx":{"$gte":14}}]},{"i_compound":{"$nin":[7,4]}}],"a_compound":{"$gte":14},"a_idx":{"$exists":true}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[14.0, inf]"]}}},
    "keys" : 275000,
    "docs" :  99986,
    "sorts":      0,
    "plans":     13,
    "rows" :  99986},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[13,12,17]}},{"a_idx":{"$nin":[17,10,9]}}],"c_compound":{"$in":[2,15,1,19]}}},{"$project":{"_id":0,"a_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[9.0, 9.0]","[10.0, 10.0]","[17.0, 17.0]"]}}}},
    "keys" :  12022,
    "docs" :  12018,
    "sorts":      0,
    "plans":     11,
    "rows" :  12018},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$all":[18,8]}},{"k_compound":{"$gte":7}},{"$or":[{"a_compound":{"$elemMatch":{"$exists":true}}},{"d_compound":{"$ne":6}}]}],"z_compound":{"$exists":true}}},{"$sort":{"z_idx":1}},{"$limit":152},{"$project":{"h_compound":1,"h_noidx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" :    152,
    "docs" :    152,
    "sorts":      0,
    "plans":     13,
    "rows" :    152},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$nin":[3,20]}},{"i_compound":{"$exists":true}}],"a_compound":{"$elemMatch":{"$lte":1}}}},{"$sort":{"h_idx":-1,"z_idx":1}},{"$project":{"_id":0,"a_compound":1,"k_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[-inf, 1.0]"]}}}}},
    "keys" :  54506,
    "docs" :  50725,
    "sorts": 495193,
    "plans":      6,
    "rows" :  42481},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$gte":11}},{"k_compound":{"$ne":3}},{"k_idx":{"$exists":true}}]}},{"$sort":{"d_idx":-1}},{"$project":{"_id":0,"a_compound":1,"c_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      6,
    "rows" :  99890},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$elemMatch":{"$exists":true,"$ne":7}}},{"a_compound":{"$exists":true}},{"c_compound":{"$nin":[6,4]}}],"a_idx":{"$nin":[1,10,17]}}},{"$sort":{"k_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     10,
    "rows" :  54274},

{">>>pipeline": [{"$match":{"$or":[{"z_idx":{"$gte":18}},{"a_compound":{"$exists":false}},{"a_compound":{"$elemMatch":{"$gte":11}}}],"i_idx":{"$gte":1}}},{"$project":{"a_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[18.0, inf]"]}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[11.0, inf]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1_i_compound_1","indexBounds":{"a_compound":["[null, null]"],"i_compound":["[MinKey, MaxKey]"]}}}]}}},
    "keys" : 278004,
    "docs" : 199978,
    "sorts":      0,
    "plans":      5,
    "rows" :  99989},

{">>>pipeline": [{"$match":{"$and":[{"h_compound":{"$exists":true}},{"a_compound":{"$in":[13,2,2]}},{"h_noidx":{"$in":[11,9,18]}}],"$or":[{"a_idx":{"$all":[12,20,16]}},{"$or":[{"a_idx":{"$lte":15}},{"a_idx":{"$elemMatch":{"$in":[10,7]}}}]},{"a_idx":{"$all":[8,4,10,7]}},{"a_compound":{"$elemMatch":{"$ne":13}}}]}},{"$limit":160},{"$project":{"_id":0,"a_compound":1,"a_noidx":1,"h_idx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[2.0, 2.0]","[13.0, 13.0]"]}}}}},
    "keys" :   5677,
    "docs" :   5677,
    "sorts":      0,
    "plans":     13,
    "rows" :    160},

{">>>pipeline": [{"$match":{"$nor":[{"a_noidx":{"$elemMatch":{"$exists":false,"$in":[15,9]}}},{"a_compound":{"$exists":false}},{"a_noidx":{"$all":[6,19]}},{"d_compound":{"$in":[7,1,6]}}],"a_compound":{"$in":[11,7,12]}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[7.0, 7.0]","[11.0, 11.0]","[12.0, 12.0]"]}}},
    "keys" :  12263,
    "docs" :  12258,
    "sorts":      0,
    "plans":      6,
    "rows" :   1204},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$all":[16,8,13]}},{"h_idx":{"$gte":12}},{"a_idx":{"$nin":[7,8]}}],"c_compound":{"$in":[8,1]},"i_compound":{"$exists":true}}},{"$sort":{"z_idx":-1}},{"$limit":239}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MaxKey, MinKey]"]}}}},
    "keys" :    263,
    "docs" :    263,
    "sorts":      0,
    "plans":     12,
    "rows" :    239},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$all":[3,20,14,8,3]}},{"$nor":[{"a_idx":{"$elemMatch":{"$nin":[19,8,6]}}},{"k_compound":{"$lt":10}}]},{"c_idx":{"$in":[6,3]}},{"d_compound":{"$lt":11}}],"a_compound":{"$gte":14}}},{"$sort":{"h_idx":1,"k_idx":1}},{"$limit":213},{"$project":{"_id":0,"k_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[20.0, 20.0]"]}}},{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[3.0, 3.0]","[6.0, 6.0]"]}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1_a_compound_1","indexBounds":{"k_compound":["[MinKey, -inf)","[10.0, MaxKey]"],"a_compound":["[14.0, inf]"]}}},{"stage":"IXSCAN","indexName":"d_compound_1_k_compound_1","indexBounds":{"d_compound":["[-inf, 11.0)"],"k_compound":["[MinKey, MaxKey]"]}}]}}}},
    "keys" : 376000,
    "docs" : 199996,
    "sorts": 636040,
    "plans":     12,
    "rows" :    213},

{">>>pipeline": [{"$match":{"$nor":[{"$and":[{"a_compound":{"$nin":[7,12,18,4]}},{"a_compound":{"$nin":[7,14]}},{"z_compound":{"$exists":false}}]},{"i_compound":{"$nin":[11,18]}},{"a_compound":{"$exists":false}}],"a_idx":{"$ne":17}}},{"$project":{"a_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_compound_1","indexBounds":{"i_compound":["[11.0, 11.0]","[18.0, 18.0]"]}}}},
    "keys" :      4,
    "docs" :      2,
    "sorts":      0,
    "plans":     15,
    "rows" :      2},

{">>>pipeline": [{"$match":{"$or":[{"c_idx":{"$nin":[13,9]}},{"a_idx":{"$lte":10}},{"$or":[{"a_compound":{"$all":[3,18,16]}},{"a_idx":{"$all":[17,14,12,20]}},{"k_idx":{"$exists":true}}]}],"a_compound":{"$all":[6,1]}}},{"$project":{"_id":0,"h_idx":1,"h_noidx":1,"i_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[6.0, 6.0]"]}}}},
    "keys" :  10873,
    "docs" :  10873,
    "sorts":      0,
    "plans":     14,
    "rows" :   3928},

{">>>pipeline": [{"$match":{"$nor":[{"k_compound":{"$in":[4,12,15]}},{"a_compound":{"$all":[13,11,5,3]}}],"a_idx":{"$in":[16,18]},"d_idx":{"$gt":7},"z_idx":{"$in":[4,8]}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[16.0, 16.0]","[18.0, 18.0]"]}}},
    "keys" :   2002,
    "docs" :   2000,
    "sorts":      0,
    "plans":     15,
    "rows" :     90},

{">>>pipeline": [{"$match":{"$or":[{"k_compound":{"$exists":true}},{"k_idx":{"$exists":false}},{"c_compound":{"$nin":[9,14]}}],"a_compound":{"$gte":4},"a_noidx":{"$elemMatch":{"$eq":19,"$exists":true,"$gte":10}}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"IXSCAN","indexName":"c_compound_1","indexBounds":{"c_compound":["[MinKey, 9.0)","(9.0, 14.0)","(14.0, MaxKey]"]}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[null, null]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[MinKey, MaxKey]"]}}}]}},
    "keys" : 200000,
    "docs" : 200000,
    "sorts":      0,
    "plans":      6,
    "rows" :   1000},

{">>>pipeline": [{"$match":{"$or":[{"$or":[{"c_compound":{"$in":[10,9,10]}},{"k_compound":{"$lt":16}}]},{"a_idx":{"$elemMatch":{"$in":[16,5,19]}}},{"a_compound":{"$elemMatch":{"$gte":8,"$nin":[9,18]}}}],"a_noidx":{"$eq":18}}},{"$sort":{"z_idx":-1}},{"$project":{"_id":0,"a_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      9,
    "rows" :   1000},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$exists":true}},{"z_compound":{"$lte":5}},{"$or":[{"d_compound":{"$ne":18}},{"a_idx":{"$elemMatch":{"$in":[3,18,12]}}}]},{"i_compound":{"$in":[19,3,16]}},{"$and":[{"a_noidx":{"$elemMatch":{"$exists":false}}},{"d_idx":{"$gte":16}}]}]}},{"$sort":{"d_idx":1}}],
    "winningPlan": {"stage":"SUBPLAN","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     11,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$and":[{"$or":[{"a_compound":{"$all":[8,5,2]}},{"a_compound":{"$nin":[5,14]}}]},{"k_idx":{"$ne":17}}],"$or":[{"d_noidx":{"$gt":11}},{"$nor":[{"a_compound":{"$all":[6,13]}},{"a_noidx":{"$nin":[7,6,1,6,6]}},{"d_compound":{"$nin":[7,18]}}]},{"a_idx":{"$gte":11}}],"a_compound":{"$all":[13,13]}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[13.0, 13.0]"]}}},
    "keys" :   1000,
    "docs" :   1000,
    "sorts":      0,
    "plans":     15,
    "rows" :    977},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$elemMatch":{"$nin":[6,12,15]}}},{"a_compound":{"$exists":true}},{"a_noidx":{"$elemMatch":{"$exists":true,"$lt":6}}},{"a_idx":{"$exists":true}}],"$or":[{"z_idx":{"$nin":[5,8,9]}},{"i_compound":{"$nin":[3,1]}},{"c_compound":{"$lt":12}}]}},{"$project":{"a_idx":1,"a_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MinKey, 5.0)","(5.0, 8.0)","(8.0, 9.0)","(9.0, MaxKey]"]}},{"stage":"IXSCAN","indexName":"i_compound_1_z_compound_1","indexBounds":{"i_compound":["[MinKey, 1.0)","(1.0, 3.0)","(3.0, MaxKey]"],"z_compound":["[MinKey, MaxKey]"]}},{"stage":"IXSCAN","indexName":"c_compound_1_d_compound_1","indexBounds":{"c_compound":["[-inf, 12.0)"],"d_compound":["[MinKey, MaxKey]"]}}]}}},
    "keys" : 297063,
    "docs" : 100000,
    "sorts":      0,
    "plans":     13,
    "rows" :  99448},

{">>>pipeline": [{"$match":{"$and":[{"c_idx":{"$in":[11,1,14,17]}},{"$nor":[{"a_compound":{"$all":[13,5,10,9]}},{"z_idx":{"$exists":false}}]}],"c_compound":{"$eq":1}}},{"$limit":167},{"$skip":43}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" :    167,
    "docs" :    167,
    "sorts":      0,
    "plans":     14,
    "rows" :    124},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$elemMatch":{"$in":[14,20,7],"$nin":[1,2,3]}}},{"a_compound":{"$elemMatch":{"$gte":6}}},{"$and":[{"h_noidx":{"$in":[15,11]}},{"z_compound":{"$ne":4}},{"a_compound":{"$nin":[9,17]}}]}],"a_idx":{"$elemMatch":{"$gt":7}},"k_idx":{"$in":[11,20]}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[11.0, 11.0]","[20.0, 20.0]"]}}},
    "keys" :    202,
    "docs" :    200,
    "sorts":      0,
    "plans":      8,
    "rows" :    200},

{">>>pipeline": [{"$match":{"$nor":[{"$or":[{"a_compound":{"$all":[10,1,3]}},{"a_compound":{"$exists":false}}]},{"k_noidx":{"$in":[19,14]}}],"a_compound":{"$nin":[18,3]}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[MinKey, MaxKey]"]}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":     12,
    "rows" :  73213},

{">>>pipeline": [{"$match":{"$nor":[{"a_idx":{"$all":[3,18]}},{"k_compound":{"$in":[7,8]}}],"a_compound":{"$elemMatch":{"$lte":2}}}},{"$sort":{"h_idx":1}},{"$limit":91},{"$skip":22}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" :     91,
    "docs" :     91,
    "sorts":      0,
    "plans":      6,
    "rows" :     69},

{">>>pipeline": [{"$match":{"$and":[{"d_compound":{"$exists":true}},{"a_compound":{"$elemMatch":{"$exists":true}}}],"a_idx":{"$elemMatch":{"$lte":15}}}},{"$sort":{"a_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      6,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"a_idx":{"$nin":[19,6,5]},"d_compound":{"$nin":[19,13,6]}}},{"$sort":{"a_idx":-1}},{"$project":{"k_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      4,
    "rows" :  76015},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$all":[3,20]}},{"i_idx":{"$exists":true}},{"z_compound":{"$eq":16}},{"k_idx":{"$exists":false}}],"i_noidx":{"$in":[9,4]}}},{"$sort":{"k_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     10,
    "rows" :      2},

{">>>pipeline": [{"$match":{"$or":[{"d_compound":{"$nin":[8,7]}},{"a_idx":{"$all":[11,15,1]}},{"a_idx":{"$elemMatch":{"$exists":true}}},{"i_compound":{"$gte":9}}],"d_compound":{"$lte":9}}},{"$sort":{"i_idx":-1}},{"$limit":88}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MaxKey, MinKey]"]}}}},
    "keys" :     88,
    "docs" :     88,
    "sorts":      0,
    "plans":     13,
    "rows" :     88},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$elemMatch":{"$eq":8,"$exists":true}}},{"a_compound":{"$all":[7,1,16,10]}}],"z_compound":{"$exists":true}}},{"$sort":{"c_idx":1,"h_idx":-1}},{"$limit":11},{"$project":{"k_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_compound_1","indexBounds":{"z_compound":["[MinKey, MaxKey]"]}}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts": 305535,
    "plans":     12,
    "rows" :     11},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$all":[8,9,1]}},{"a_compound":{"$exists":true}}]}},{"$sort":{"a_idx":-1}},{"$project":{"_id":0,"a_noidx":1,"i_idx":1}}],
    "winningPlan": {"stage":"SUBPLAN","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      9,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[1,7,14]}},{"i_idx":{"$lt":4}}],"a_idx":{"$elemMatch":{"$in":[6,10,14,1]}}}},{"$limit":221},{"$project":{"a_idx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[1.0, 1.0]","[6.0, 6.0]","[10.0, 10.0]","[14.0, 14.0]"]}}}}},
    "keys" :    223,
    "docs" :    223,
    "sorts":      0,
    "plans":     10,
    "rows" :    221},

{">>>pipeline": [{"$match":{"$nor":[{"k_compound":{"$exists":false}},{"a_compound":{"$all":[18,4]}}],"a_compound":{"$nin":[9,5,1]}}},{"$sort":{"c_idx":-1,"z_idx":1}},{"$limit":66}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1_a_compound_1","indexBounds":{"k_compound":["[MinKey, MaxKey]"],"a_compound":["[MinKey, 1.0)","(1.0, 5.0)","(5.0, 9.0)","(9.0, MaxKey]"]}}}},
    "keys" : 403959,
    "docs" : 100000,
    "sorts": 212760,
    "plans":     13,
    "rows" :     66},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$all":[17,4]}},{"a_idx":{"$nin":[9,11,11,2]}}],"a_compound":{"$exists":true}}},{"$project":{"a_idx":1,"i_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[MinKey, MaxKey]"]}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :  53841},

{">>>pipeline": [{"$match":{"$and":[{"z_idx":{"$exists":true}},{"k_compound":{"$exists":true}},{"$and":[{"a_compound":{"$elemMatch":{"$exists":true}}},{"a_noidx":{"$nin":[8,20]}}]}]}},{"$limit":20},{"$project":{"c_noidx":1,"i_compound":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[MinKey, MaxKey]"]}}}}},
    "keys" :     20,
    "docs" :     20,
    "sorts":      0,
    "plans":      5,
    "rows" :     20},

{">>>pipeline": [{"$match":{"$or":[{"$and":[{"a_idx":{"$exists":true}},{"a_idx":{"$elemMatch":{"$in":[11,6,18],"$nin":[9,6]}}},{"a_idx":{"$all":[16,14]}},{"a_compound":{"$all":[6,19]}}]},{"h_idx":{"$ne":3}}],"a_compound":{"$exists":true}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[MinKey, MaxKey]"]}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":     11,
    "rows" :  99000},

{">>>pipeline": [{"$match":{"$nor":[{"a_noidx":{"$elemMatch":{"$exists":false}}},{"$nor":[{"$or":[{"i_compound":{"$ne":18}},{"a_idx":{"$all":[4,13]}}]},{"z_compound":{"$exists":false}}]}],"i_idx":{"$exists":true},"z_compound":{"$lt":10}}},{"$sort":{"z_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     14,
    "rows" :  99988},

{">>>pipeline": [{"$match":{"$or":[{"$or":[{"a_compound":{"$elemMatch":{"$exists":true}}},{"z_compound":{"$in":[1,16]}},{"a_compound":{"$all":[17,8]}}]},{"a_idx":{"$gt":17}}],"k_compound":{"$nin":[6,16,20,6]}}},{"$sort":{"z_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     12,
    "rows" :  99700},

{">>>pipeline": [{"$match":{"$nor":[{"a_idx":{"$in":[18,3,5]}},{"i_compound":{"$in":[13,15]}}],"$or":[{"$or":[{"a_compound":{"$all":[3,18,9]}},{"a_compound":{"$elemMatch":{"$exists":false,"$in":[8,14,8]}}},{"$nor":[{"k_compound":{"$nin":[4,2]}},{"a_noidx":{"$elemMatch":{"$eq":1,"$exists":true,"$nin":[2,2,6]}}}]}]},{"a_idx":{"$elemMatch":{"$exists":true}}},{"a_compound":{"$nin":[16,15]}}],"a_idx":{"$all":[1,12]}}},{"$project":{"a_compound":1,"a_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[12.0, 12.0]"]}}}},
    "keys" :   1000,
    "docs" :   1000,
    "sorts":      0,
    "plans":     14,
    "rows" :    411},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$all":[19,14]}},{"i_compound":{"$nin":[15,14,5]}}],"d_compound":{"$lt":7},"k_compound":{"$eq":10}}},{"$sort":{"h_idx":-1}},{"$limit":193}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[10.0, 10.0]"]}}}},
    "keys" :    100,
    "docs" :    100,
    "sorts":    561,
    "plans":     14,
    "rows" :    100},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[19,9,2]}},{"a_idx":{"$nin":[3,18]}},{"a_compound":{"$gte":10}}],"h_idx":{"$ne":3}}},{"$sort":{"i_idx":1,"k_idx":1}},{"$limit":248},{"$project":{"_id":0,"z_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[MinKey, 10.0)","(inf, MaxKey]"]}}}}},
    "keys" : 189931,
    "docs" : 100000,
    "sorts":      6,
    "plans":     12,
    "rows" :      3},

{">>>pipeline": [{"$match":{"a_compound":{"$elemMatch":{"$exists":true,"$lt":7}},"i_compound":{"$gte":15},"k_compound":{"$in":[19,4,18,7]}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[4.0, 4.0]","[7.0, 7.0]","[18.0, 18.0]","[19.0, 19.0]"]}}},
    "keys" :    403,
    "docs" :    400,
    "sorts":      0,
    "plans":      6,
    "rows" :    398},

{">>>pipeline": [{"$match":{"$and":[{"a_idx":{"$elemMatch":{"$gte":6}}},{"k_compound":{"$ne":3}},{"a_compound":{"$elemMatch":{"$eq":2}}},{"k_compound":{"$in":[9,14,6,5]}}],"$or":[{"a_idx":{"$all":[10,6]}},{"a_compound":{"$exists":true}}]}},{"$sort":{"d_idx":1}},{"$project":{"_id":0,"a_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1_a_compound_1","indexBounds":{"k_compound":["[5.0, 5.0]","[6.0, 6.0]","[9.0, 9.0]","[14.0, 14.0]"],"a_compound":["[2.0, 2.0]"]}}}}},
    "keys" :    131,
    "docs" :    124,
    "sorts":    722,
    "plans":     15,
    "rows" :    124},

{">>>pipeline": [{"$match":{"$nor":[{"$or":[{"k_idx":{"$in":[14,12]}},{"a_noidx":{"$nin":[18,8]}}]},{"a_noidx":{"$in":[19,1]}},{"a_compound":{"$all":[15,1,4]}}],"a_noidx":{"$gt":11},"i_compound":{"$nin":[15,11]},"k_noidx":{"$nin":[17,14]}}},{"$sort":{"d_idx":-1}},{"$limit":118}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MaxKey, MinKey]"]}}}},
    "keys" :  10198,
    "docs" :  10198,
    "sorts":      0,
    "plans":     12,
    "rows" :    118},

{">>>pipeline": [{"$match":{"$nor":[{"$and":[{"a_compound":{"$in":[19,11,11]}},{"$or":[{"a_noidx":{"$in":[1,17]}},{"a_compound":{"$gte":4}},{"c_compound":{"$in":[3,8]}}]}]},{"h_idx":{"$eq":7}},{"a_idx":{"$in":[10,1]}}],"a_compound":{"$elemMatch":{"$in":[3,4]}}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[3.0, 3.0]","[4.0, 4.0]"]}}},
    "keys" :  42881,
    "docs" :  40331,
    "sorts":      0,
    "plans":     10,
    "rows" :  29357},

{">>>pipeline": [{"$match":{"a_compound":{"$nin":[11,9,9,8]},"h_idx":{"$exists":true},"i_compound":{"$exists":true}}},{"$sort":{"i_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      6,
    "rows" :  78913},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$all":[11,18,17,20,1,12]}},{"d_idx":{"$nin":[12,3]}}],"h_compound":{"$lte":5}}},{"$sort":{"d_idx":1}},{"$limit":130},{"$project":{"h_compound":1,"i_compound":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" :   1291,
    "docs" :   1291,
    "sorts":      0,
    "plans":     12,
    "rows" :    130},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$elemMatch":{"$gt":1}}},{"a_compound":{"$exists":true}},{"a_compound":{"$elemMatch":{"$exists":true}}}],"a_idx":{"$elemMatch":{"$gt":17}}}},{"$sort":{"a_idx":-1}},{"$project":{"_id":0,"h_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      6,
    "rows" :  99982},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$all":[10,7,15,1]}},{"h_compound":{"$lt":2}},{"c_compound":{"$exists":false}}],"a_compound":{"$nin":[5,14]}}},{"$sort":{"d_idx":1}},{"$project":{"a_idx":1,"k_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     13,
    "rows" :   1943},

{">>>pipeline": [{"$match":{"$nor":[{"h_compound":{"$nin":[4,1,10,3]}},{"i_idx":{"$eq":12}},{"$and":[{"$nor":[{"z_compound":{"$exists":true}},{"a_idx":{"$all":[14,9,19,20]}}]},{"c_compound":{"$exists":true}}]},{"c_idx":{"$gt":14}},{"d_compound":{"$nin":[19,20,3,15]}}],"z_noidx":{"$lt":7}}},{"$sort":{"a_idx":-1}},{"$limit":215}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_compound_1","indexBounds":{"h_compound":["[1.0, 1.0]","[3.0, 3.0]","[4.0, 4.0]","[10.0, 10.0]"]}}}},
    "keys" :   4003,
    "docs" :   4000,
    "sorts":   6345,
    "plans":     16,
    "rows" :    215},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$elemMatch":{"$exists":true}}},{"a_noidx":{"$exists":true}}],"$or":[{"a_idx":{"$all":[18,16,19]}},{"d_compound":{"$nin":[20,18]}}],"a_noidx":{"$elemMatch":{"$gt":15,"$nin":[10,5,2]}}}},{"$sort":{"a_idx":-1}},{"$limit":220}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}}},
    "keys" :    220,
    "docs" :    220,
    "sorts":      0,
    "plans":     11,
    "rows" :    220},

{">>>pipeline": [{"$match":{"a_compound":{"$gte":13},"i_compound":{"$gte":13}}},{"$sort":{"d_idx":-1,"h_idx":-1,"z_idx":-1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","inputStage":{"stage":"IXSCAN","indexName":"a_compound_1_i_compound_1","indexBounds":{"a_compound":["[13.0, inf]"],"i_compound":["[13.0, inf]"]}}}},
    "keys" : 276000,
    "docs" :  99987,
    "sorts": 1251117,
    "plans":      4,
    "rows" :  99987},

{">>>pipeline": [{"$match":{"$nor":[{"a_idx":{"$gte":18}},{"a_idx":{"$all":[1,11,20]}}],"$or":[{"$and":[{"a_noidx":{"$all":[8,9]}},{"a_idx":{"$elemMatch":{"$nin":[13,4,12]}}}]},{"$or":[{"a_idx":{"$all":[4,14]}},{"a_compound":{"$all":[20,5,17,14,20]}}]},{"a_compound":{"$elemMatch":{"$in":[10,15,11]}}}]}},{"$sort":{"c_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     11,
    "rows" :      4},

{">>>pipeline": [{"$match":{"$and":[{"c_compound":{"$in":[18,11,1]}},{"k_idx":{"$nin":[13,11,13,6]}},{"$nor":[{"i_compound":{"$nin":[18,9,15]}},{"a_idx":{"$elemMatch":{"$exists":false}}},{"$and":[{"c_idx":{"$nin":[19,12,15]}},{"d_compound":{"$in":[20,15,2]}}]}]},{"a_compound":{"$lte":6}}],"c_compound":{"$exists":true}}},{"$project":{"_id":0,"a_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_compound_1","indexBounds":{"i_compound":["[9.0, 9.0]","[15.0, 15.0]","[18.0, 18.0]"]}}}},
    "keys" :      6,
    "docs" :      3,
    "sorts":      0,
    "plans":     10,
    "rows" :      3},

{">>>pipeline": [{"$match":{"$or":[{"$or":[{"a_idx":{"$exists":true}},{"i_compound":{"$lte":15}},{"a_compound":{"$all":[2,6,9,16,10]}}]},{"a_idx":{"$all":[9,2]}}],"i_compound":{"$gt":3}}},{"$sort":{"c_idx":1,"h_idx":-1}},{"$skip":2},{"$project":{"a_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SKIP","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_compound_1","indexBounds":{"i_compound":["(3.0, inf]"]}}}}}},
    "keys" :  99996,
    "docs" :  99996,
    "sorts": 1251238,
    "plans":     12,
    "rows" :  99994},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$exists":true}},{"$nor":[{"k_compound":{"$exists":false}},{"a_compound":{"$all":[12,2]}}]},{"k_idx":{"$nin":[4,19,14]}}],"z_noidx":{"$exists":true}}},{"$sort":{"h_idx":-1}},{"$project":{"a_noidx":1,"k_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     15,
    "rows" :  98700},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$elemMatch":{"$in":[11,5]}}},{"$or":[{"z_noidx":{"$in":[5,2]}},{"a_noidx":{"$all":[19,2]}},{"a_noidx":{"$elemMatch":{"$in":[5,7,19],"$nin":[4,5,9]}}},{"a_noidx":{"$all":[2,3,14,11]}}]}],"$or":[{"h_idx":{"$lte":10}},{"a_idx":{"$elemMatch":{"$in":[19,9],"$ne":5}}},{"$or":[{"$and":[{"h_compound":{"$in":[13,6,4,13]}},{"a_idx":{"$all":[17,1]}}]},{"d_idx":{"$gt":13}},{"a_idx":{"$all":[19,20]}},{"a_compound":{"$elemMatch":{"$exists":true,"$in":[12,3],"$nin":[17,6,14,5]}}}]}]}},{"$sort":{"i_idx":1}},{"$limit":148},{"$project":{"a_compound":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" :  12206,
    "docs" :  12206,
    "sorts":      0,
    "plans":     13,
    "rows" :    148},

{">>>pipeline": [{"$match":{"$and":[{"a_idx":{"$exists":true}},{"a_idx":{"$elemMatch":{"$in":[14,7],"$nin":[14,6,15]}}},{"a_compound":{"$elemMatch":{"$eq":1,"$exists":true}}}],"$nor":[{"a_compound":{"$exists":false}},{"a_compound":{"$all":[17,13]}}]}},{"$sort":{"d_idx":1}},{"$limit":250}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[7.0, 7.0]"]}}}},
    "keys" :  10257,
    "docs" :  10257,
    "sorts":  25225,
    "plans":     11,
    "rows" :    250},

{">>>pipeline": [{"$match":{"$and":[{"$and":[{"$nor":[{"a_idx":{"$in":[16,18]}},{"a_noidx":{"$all":[14,11]}},{"a_idx":{"$exists":false}},{"a_noidx":{"$elemMatch":{"$exists":false}}}]},{"a_idx":{"$nin":[20,7,13]}},{"d_compound":{"$nin":[8,19,2]}}]},{"a_compound":{"$all":[14,2]}}]}},{"$sort":{"a_idx":1}},{"$limit":9}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[14.0, 14.0]"]}}}},
    "keys" :   1000,
    "docs" :   1000,
    "sorts":   1042,
    "plans":     10,
    "rows" :      9},

{">>>pipeline": [{"$match":{"$and":[{"d_compound":{"$exists":true}},{"a_compound":{"$elemMatch":{"$exists":true}}}],"$or":[{"a_compound":{"$elemMatch":{"$exists":false,"$in":[9,2,15]}}},{"a_compound":{"$elemMatch":{"$ne":3}}},{"a_idx":{"$eq":19}},{"a_compound":{"$lte":2}}]}},{"$project":{"c_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[19.0, 19.0]"]}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[MinKey, 3.0)","(3.0, MaxKey]"]}}}]}}},
    "keys" : 444156,
    "docs" : 200000,
    "sorts":      0,
    "plans":     12,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$and":[{"z_compound":{"$ne":10}},{"a_compound":{"$elemMatch":{"$in":[4,1]}}},{"$and":[{"a_idx":{"$nin":[15,18]}},{"a_noidx":{"$lte":16}}]},{"a_compound":{"$ne":4}}],"a_noidx":{"$nin":[5,15,5]},"i_idx":{"$ne":4}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_compound_1","indexBounds":{"z_compound":["[MinKey, 10.0)","(10.0, MaxKey]"]}}},
    "keys" :  99994,
    "docs" :  99993,
    "sorts":      0,
    "plans":      8,
    "rows" :  35404},

{">>>pipeline": [{"$match":{"$nor":[{"k_compound":{"$lt":15}},{"a_compound":{"$all":[2,5,4]}},{"d_noidx":{"$exists":false}},{"$or":[{"z_compound":{"$nin":[19,2]}},{"i_noidx":{"$exists":false}},{"d_idx":{"$in":[13,12,15]}}]}],"a_compound":{"$elemMatch":{"$exists":true}}}},{"$project":{"_id":0,"i_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_compound_1","indexBounds":{"z_compound":["[2.0, 2.0]","[19.0, 19.0]"]}}}},
    "keys" :  31951,
    "docs" :  31950,
    "sorts":      0,
    "plans":     17,
    "rows" :  31470},

{">>>pipeline": [{"$match":{"$nor":[{"$or":[{"d_noidx":{"$in":[19,17,19]}},{"a_compound":{"$all":[10,4,6]}},{"k_compound":{"$eq":15}}]},{"i_compound":{"$eq":5}}],"a_compound":{"$elemMatch":{"$lte":3}}}},{"$skip":86}],
    "winningPlan": {"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[MinKey, 15.0)","(15.0, MaxKey]"]}}}},
    "keys" :  99901,
    "docs" :  99900,
    "sorts":      0,
    "plans":     16,
    "rows" :  92554},

{">>>pipeline": [{"$match":{"$and":[{"$or":[{"a_idx":{"$exists":false}},{"a_idx":{"$ne":16}},{"a_compound":{"$all":[8,12,7]}}]},{"$or":[{"c_compound":{"$exists":true}},{"a_idx":{"$elemMatch":{"$gt":2,"$ne":10}}},{"k_compound":{"$lt":17}}]}],"a_compound":{"$exists":true}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[-inf, 17.0)"]}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["(2.0, 10.0)","(10.0, inf]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_compound_1_d_compound_1","indexBounds":{"c_compound":["[MinKey, MaxKey]"],"d_compound":["[MinKey, MaxKey]"]}}}]}},
    "keys" : 476337,
    "docs" : 299998,
    "sorts":      0,
    "plans":     13,
    "rows" :  99000},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$elemMatch":{"$nin":[18,9]}}},{"a_compound":{"$all":[12,1]}}],"z_compound":{"$exists":true}}},{"$sort":{"h_idx":1,"z_idx":1}},{"$limit":66}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_compound_1","indexBounds":{"z_compound":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts": 518965,
    "plans":     11,
    "rows" :     66},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$elemMatch":{"$eq":6,"$exists":true,"$ne":8}}},{"a_compound":{"$all":[9,2]}},{"a_compound":{"$nin":[12,12,14]}}],"d_compound":{"$exists":true}}},{"$sort":{"c_idx":-1,"h_idx":1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_compound_1","indexBounds":{"d_compound":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts": 1224516,
    "plans":     11,
    "rows" :  98017},

{">>>pipeline": [{"$match":{"$or":[{"c_compound":{"$gt":4}},{"a_idx":{"$all":[3,18]}},{"a_compound":{"$gt":5}}],"a_compound":{"$all":[18,18]}}},{"$sort":{"a_idx":-1}},{"$project":{"a_compound":1,"a_idx":1,"a_noidx":1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[18.0, 18.0]"]}}}}},
    "keys" :   1000,
    "docs" :   1000,
    "sorts":   7908,
    "plans":     13,
    "rows" :   1000},

{">>>pipeline": [{"$match":{"a_compound":{"$exists":true},"d_compound":{"$lt":7},"z_idx":{"$lt":13}}},{"$sort":{"k_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      6,
    "rows" :  70000},

{">>>pipeline": [{"$match":{"$and":[{"z_idx":{"$gte":3}},{"$nor":[{"z_compound":{"$in":[5,20]}},{"c_compound":{"$in":[17,14]}},{"a_compound":{"$gt":15}}]}]}},{"$sort":{"i_idx":-1}},{"$project":{"a_compound":1,"k_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      8,
    "rows" :      6},

{">>>pipeline": [{"$match":{"$nor":[{"a_noidx":{"$all":[11,8]}},{"a_compound":{"$all":[10,3,8,17]}},{"$nor":[{"i_idx":{"$exists":true}},{"a_idx":{"$ne":7}},{"a_compound":{"$exists":true}}]}],"$or":[{"$or":[{"z_idx":{"$exists":true}},{"i_compound":{"$eq":9}},{"a_idx":{"$all":[13,20,4]}}]},{"a_idx":{"$all":[5,20]}},{"a_compound":{"$exists":false}}],"c_compound":{"$exists":true}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_compound_1","indexBounds":{"c_compound":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     12,
    "rows" :  99999},

{">>>pipeline": [{"$match":{"$or":[{"h_idx":{"$nin":[13,16,2]}},{"a_idx":{"$nin":[16,14,7,13]}},{"a_compound":{"$all":[4,15]}},{"a_idx":{"$all":[12,8,9]}}],"a_compound":{"$exists":true},"c_idx":{"$ne":15}}},{"$sort":{"k_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     13,
    "rows" :  97997},

{">>>pipeline": [{"$match":{"$and":[{"a_noidx":{"$ne":16}},{"c_noidx":{"$exists":true}},{"$nor":[{"a_compound":{"$all":[13,2,13,20,12]}},{"i_idx":{"$lte":6}}]}]}},{"$sort":{"c_idx":-1}},{"$limit":102}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MaxKey, MinKey]"]}}}},
    "keys" :    103,
    "docs" :    103,
    "sorts":      0,
    "plans":     12,
    "rows" :    102},

{">>>pipeline": [{"$match":{"$and":[{"h_noidx":{"$gt":4}},{"h_compound":{"$exists":true}}],"$nor":[{"$and":[{"a_compound":{"$exists":false}},{"c_idx":{"$exists":true}},{"a_compound":{"$all":[16,7,20]}}]},{"z_noidx":{"$in":[18,6,17,8,17]}},{"d_noidx":{"$exists":false}}],"a_idx":{"$exists":true}}},{"$sort":{"c_idx":1}},{"$limit":216},{"$project":{"z_idx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" :    236,
    "docs" :    236,
    "sorts":      0,
    "plans":     13,
    "rows" :    216},

{">>>pipeline": [{"$match":{"$and":[{"d_idx":{"$nin":[13,8]}},{"h_compound":{"$nin":[12,20]}},{"c_noidx":{"$lt":4}},{"a_compound":{"$in":[4,9]}},{"a_compound":{"$exists":true}}],"a_compound":{"$gt":1},"a_idx":{"$elemMatch":{"$in":[18,5,11],"$nin":[10,7,4]}}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[5.0, 5.0]","[11.0, 11.0]","[18.0, 18.0]"]}}},
    "keys" :  14535,
    "docs" :  14480,
    "sorts":      0,
    "plans":      9,
    "rows" :   1426},

{">>>pipeline": [{"$match":{"$nor":[{"$nor":[{"c_compound":{"$exists":false}},{"i_compound":{"$lte":19}},{"a_idx":{"$exists":true}}]},{"a_noidx":{"$elemMatch":{"$in":[15,5]}}}],"a_idx":{"$elemMatch":{"$lte":12}}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[-inf, 12.0]"]}}},
    "keys" : 192941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :  87472},

{">>>pipeline": [{"$match":{"$and":[{"d_noidx":{"$exists":true}},{"a_noidx":{"$in":[10,20,19]}},{"i_idx":{"$lt":16}},{"$or":[{"$or":[{"a_compound":{"$elemMatch":{"$gt":5}}},{"a_compound":{"$elemMatch":{"$eq":7,"$lte":17}}}]},{"a_idx":{"$all":[6,9]}}]},{"a_idx":{"$elemMatch":{"$exists":true,"$nin":[2,1,4]}}}],"$or":[{"i_compound":{"$exists":true}},{"i_compound":{"$in":[15,16,2]}},{"c_idx":{"$exists":false}}]}},{"$sort":{"d_idx":1,"h_idx":-1}},{"$limit":222}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[-inf, 16.0)"]}}}},
    "keys" :     16,
    "docs" :     16,
    "sorts":      1,
    "plans":     16,
    "rows" :      1},

{">>>pipeline": [{"$match":{"$nor":[{"c_compound":{"$exists":false}},{"a_noidx":{"$nin":[20,11,10,9]}},{"a_compound":{"$all":[15,12,7,13]}}],"k_noidx":{"$gt":4}}},{"$limit":146}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_compound_1_d_compound_1","indexBounds":{"c_compound":["[MinKey, MaxKey]"],"d_compound":["[MinKey, MaxKey]"]}}}},
    "keys" :    723,
    "docs" :    723,
    "sorts":      0,
    "plans":     12,
    "rows" :    146},

{">>>pipeline": [{"$match":{"$or":[{"h_compound":{"$gt":11}},{"a_idx":{"$all":[17,4,19]}}],"a_idx":{"$gte":7}}},{"$sort":{"a_idx":-1}},{"$limit":119},{"$project":{"a_compound":1,"a_noidx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}}}},
    "keys" :    131,
    "docs" :    131,
    "sorts":      0,
    "plans":      6,
    "rows" :    119},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$ne":20}},{"d_idx":{"$lt":8}},{"a_idx":{"$all":[18,18,12,6,1]}},{"a_compound":{"$elemMatch":{"$exists":true}}}],"a_compound":{"$elemMatch":{"$nin":[12,18,5]}},"a_idx":{"$in":[6,2]}}},{"$limit":4},{"$project":{"d_compound":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[2.0, 2.0]","[6.0, 6.0]"]}}}}},
    "keys" :      4,
    "docs" :      4,
    "sorts":      0,
    "plans":     13,
    "rows" :      4},

{">>>pipeline": [{"$match":{"$nor":[{"$and":[{"k_compound":{"$exists":false}},{"i_compound":{"$eq":18}},{"d_idx":{"$nin":[9,19,8,14]}},{"a_noidx":{"$all":[13,9]}}]},{"k_compound":{"$in":[10,9,19,14]}}],"a_compound":{"$lt":14},"d_idx":{"$nin":[14,6,9,20,8,18]},"i_idx":{"$lt":20}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[-inf, 20.0)"]}}},
    "keys" :     20,
    "docs" :     20,
    "sorts":      0,
    "plans":      6,
    "rows" :     12},

{">>>pipeline": [{"$match":{"$or":[{"$or":[{"a_compound":{"$all":[1,7,18]}},{"a_idx":{"$elemMatch":{"$gte":20}}},{"a_idx":{"$elemMatch":{"$exists":true,"$nin":[14,8,2]}}}]},{"$or":[{"c_compound":{"$lt":8}},{"a_idx":{"$eq":4}},{"a_compound":{"$nin":[15,4]}}]}],"h_idx":{"$exists":true}}},{"$sort":{"a_idx":-1,"i_idx":-1,"k_idx":1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"IXSCAN","indexName":"c_compound_1","indexBounds":{"c_compound":["[-inf, 8.0)"]}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[1.0, 1.0]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, 2.0)","(2.0, 8.0)","(8.0, 14.0)","(14.0, MaxKey]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[MinKey, 4.0)","(4.0, 15.0)","(15.0, MaxKey]"]}}}]}}},
    "keys" : 1014426,
    "docs" : 344506,
    "sorts": 1251293,
    "plans":     10,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$lte":14}},{"$or":[{"a_compound":{"$in":[13,14]}},{"a_compound":{"$exists":true}},{"a_compound":{"$in":[19,17]}}]},{"z_compound":{"$ne":15}}]}},{"$sort":{"k_idx":1}},{"$limit":91}],
    "winningPlan": {"stage":"SUBPLAN","inputStage":{"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" :     91,
    "docs" :     91,
    "sorts":      0,
    "plans":     11,
    "rows" :     91},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$in":[3,12,8]}},{"a_compound":{"$elemMatch":{"$eq":12}}}],"a_compound":{"$elemMatch":{"$exists":true,"$lte":2}}}},{"$sort":{"h_idx":-1}},{"$limit":29},{"$project":{"_id":0,"c_compound":1,"h_compound":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MaxKey, MinKey]"]}}}}},
    "keys" :     38,
    "docs" :     38,
    "sorts":      0,
    "plans":      5,
    "rows" :     29},

{">>>pipeline": [{"$match":{"a_compound":{"$nin":[13,15]},"z_compound":{"$nin":[20,19]}}},{"$sort":{"a_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :  98000},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$elemMatch":{"$exists":false,"$in":[9,7,14]}}},{"$or":[{"z_idx":{"$exists":true}},{"a_idx":{"$all":[14,2]}}]},{"k_compound":{"$exists":false}},{"k_compound":{"$lte":15}}],"z_compound":{"$ne":12}}},{"$sort":{"z_idx":1}},{"$project":{"_id":0,"i_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     13,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$nin":[12,13]}},{"a_compound":{"$all":[9,4]}}],"a_compound":{"$gte":20}}},{"$sort":{"d_idx":-1,"h_idx":-1}},{"$limit":250}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[20.0, inf]"]}}}},
    "keys" : 269000,
    "docs" :  99980,
    "sorts": 638986,
    "plans":      7,
    "rows" :    250},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$all":[13,15,8]}},{"$and":[{"c_idx":{"$nin":[9,7]}},{"a_compound":{"$in":[11,7,14]}},{"d_compound":{"$lte":2}}]},{"a_idx":{"$all":[17,17]}}],"a_compound":{"$elemMatch":{"$in":[11,18]}}}},{"$sort":{"z_idx":-1}},{"$project":{"_id":0,"a_idx":1,"z_idx":1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[11.0, 11.0]","[18.0, 18.0]"]}}}}},
    "keys" :   2006,
    "docs" :   2004,
    "sorts":   7917,
    "plans":     13,
    "rows" :   1001},

{">>>pipeline": [{"$match":{"$or":[{"h_idx":{"$gte":8}},{"$and":[{"i_compound":{"$exists":true}},{"a_compound":{"$all":[2,9,19,3,20]}}]}],"a_compound":{"$lte":11},"z_idx":{"$exists":true}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     13,
    "rows" :  92000},

{">>>pipeline": [{"$match":{"$and":[{"a_idx":{"$in":[13,5]}},{"$or":[{"d_compound":{"$lt":15}},{"a_idx":{"$in":[16,7,13]}},{"$and":[{"$and":[{"k_compound":{"$eq":7}},{"c_compound":{"$exists":false}},{"a_compound":{"$exists":true}},{"a_compound":{"$gt":6}}]},{"i_compound":{"$nin":[13,16]}}]}]},{"a_noidx":{"$exists":true}}],"$or":[{"a_idx":{"$in":[19,12]}},{"a_compound":{"$ne":7}},{"a_idx":{"$ne":1}}]}},{"$sort":{"a_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":     14,
    "rows" :  13505},

{">>>pipeline": [{"$match":{"$or":[{"k_compound":{"$lt":8}},{"c_compound":{"$lt":13}},{"a_compound":{"$gte":3}},{"a_compound":{"$ne":13}},{"a_compound":{"$exists":false}}],"d_compound":{"$exists":true}}},{"$project":{"a_noidx":1,"z_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"IXSCAN","indexName":"c_compound_1","indexBounds":{"c_compound":["[-inf, 13.0)"]}},{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[-inf, 8.0)"]}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[MinKey, MaxKey]"]}}}]}}},
    "keys" : 569741,
    "docs" : 200000,
    "sorts":      0,
    "plans":     12,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$in":[11,1,14,13,18,15]}},{"$nor":[{"a_idx":{"$eq":18}},{"a_compound":{"$all":[13,11,9]}}]},{"a_noidx":{"$exists":true}},{"c_noidx":{"$nin":[2,15]}}]}},{"$sort":{"c_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     12,
    "rows" :  45976},

{">>>pipeline": [{"$match":{"$and":[{"a_idx":{"$lte":11}},{"z_noidx":{"$exists":true}},{"$or":[{"a_idx":{"$exists":true}},{"a_idx":{"$exists":true}}]},{"h_noidx":{"$gt":10}}],"$or":[{"a_idx":{"$all":[17,12]}},{"d_compound":{"$gte":2}},{"i_compound":{"$exists":true}}]}},{"$sort":{"i_idx":1}},{"$limit":235},{"$project":{"a_compound":1,"a_noidx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" :    268,
    "docs" :    268,
    "sorts":      0,
    "plans":     13,
    "rows" :    235},

{">>>pipeline": [{"$match":{"$nor":[{"a_noidx":{"$gt":6}},{"a_idx":{"$elemMatch":{"$exists":true,"$in":[18,10,17,20]}}},{"a_compound":{"$all":[6,3,19,12]}}],"a_compound":{"$elemMatch":{"$exists":true}},"c_noidx":{"$in":[16,1]},"i_noidx":{"$ne":10}}},{"$sort":{"k_idx":-1}},{"$limit":214}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     13,
    "rows" :      7},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$lt":14}},{"a_compound":{"$eq":1}}],"a_compound":{"$elemMatch":{"$gte":15}}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[15.0, inf]"]}}},
    "keys" : 274000,
    "docs" :  99985,
    "sorts":      0,
    "plans":      6,
    "rows" :  99985},

{">>>pipeline": [{"$match":{"$nor":[{"a_noidx":{"$in":[1,4,11,5,9]}},{"i_noidx":{"$exists":false}}],"$or":[{"a_idx":{"$all":[6,17,17,16,12]}},{"i_compound":{"$gte":18}},{"$or":[{"a_idx":{"$all":[8,15]}},{"a_idx":{"$elemMatch":{"$lte":16}}}]},{"c_idx":{"$gte":18}}]}},{"$sort":{"i_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     11,
    "rows" :  30437},

{">>>pipeline": [{"$match":{"$and":[{"$nor":[{"a_compound":{"$all":[17,12]}},{"a_noidx":{"$all":[10,10]}}]},{"a_idx":{"$in":[8,3,2,7]}}]}},{"$sort":{"a_idx":-1,"d_idx":-1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[2.0, 2.0]","[3.0, 3.0]","[7.0, 7.0]","[8.0, 8.0]"]}}}},
    "keys" :  84918,
    "docs" :  70048,
    "sorts": 845058,
    "plans":      5,
    "rows" :  69553},

{">>>pipeline": [{"$match":{"$or":[{"$and":[{"$or":[{"$and":[{"z_compound":{"$gt":3}},{"a_noidx":{"$elemMatch":{"$in":[11,17],"$lte":3,"$nin":[3,14,20,8]}}}]},{"i_idx":{"$eq":9}},{"z_compound":{"$nin":[19,14,14]}}]},{"h_compound":{"$exists":false}}]},{"a_idx":{"$in":[12,7,9]}},{"a_compound":{"$elemMatch":{"$nin":[17,15,10,14,15]}}}],"i_compound":{"$nin":[19,2]}}},{"$sort":{"d_idx":-1}},{"$limit":86},{"$project":{"_id":0,"a_idx":1,"i_idx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MaxKey, MinKey]"]}}}}},
    "keys" :     86,
    "docs" :     86,
    "sorts":      0,
    "plans":     13,
    "rows" :     86},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$in":[3,2,20]}},{"z_idx":{"$lt":18}}],"i_compound":{"$ne":2}}},{"$sort":{"z_idx":1}},{"$project":{"_id":0,"h_compound":1,"z_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :  99999},

{">>>pipeline": [{"$match":{"$or":[{"$and":[{"k_compound":{"$in":[6,16]}},{"a_noidx":{"$exists":false}},{"$nor":[{"a_noidx":{"$exists":true}},{"$or":[{"c_compound":{"$in":[12,4]}},{"a_compound":{"$nin":[18,12,5]}},{"a_idx":{"$exists":true}},{"i_compound":{"$nin":[2,13]}}]}]},{"h_compound":{"$ne":12}}]},{"z_compound":{"$lte":10}}],"i_noidx":{"$exists":true}}},{"$sort":{"d_idx":1}},{"$limit":198}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MinKey, MaxKey]"]}}}},
    "keys" :    198,
    "docs" :    198,
    "sorts":      0,
    "plans":     11,
    "rows" :    198},

{">>>pipeline": [{"$match":{"$nor":[{"c_compound":{"$eq":4}},{"$nor":[{"$and":[{"i_compound":{"$exists":true}},{"a_compound":{"$in":[11,3]}},{"$nor":[{"h_idx":{"$eq":15}},{"k_compound":{"$in":[5,19,20]}}]},{"a_compound":{"$elemMatch":{"$exists":true}}}]},{"c_idx":{"$in":[15,17,7]}}]}],"k_idx":{"$exists":true}}},{"$sort":{"a_idx":-1,"z_idx":1}},{"$project":{"_id":0,"a_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1_a_compound_1","indexBounds":{"k_compound":["[MinKey, 5.0)","(5.0, 19.0)","(19.0, 20.0)","(20.0, MaxKey]"],"a_compound":["[MinKey, MaxKey]"]}}},{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[7.0, 7.0]","[15.0, 15.0]","[17.0, 17.0]"]}}]}}}},
    "keys" : 467850,
    "docs" : 126080,
    "sorts": 294938,
    "plans":     12,
    "rows" :  26380},

{">>>pipeline": [{"$match":{"$or":[{"$and":[{"$nor":[{"c_noidx":{"$ne":16}},{"a_compound":{"$lt":12}},{"c_compound":{"$ne":1}},{"h_idx":{"$lt":1}},{"a_idx":{"$lte":3}}]},{"d_noidx":{"$nin":[11,4]}}]},{"i_idx":{"$lte":14}},{"i_idx":{"$in":[18,14,13]}}],"d_compound":{"$eq":8}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_compound_1","indexBounds":{"d_compound":["[8.0, 8.0]"]}}},
    "keys" :  10000,
    "docs" :  10000,
    "sorts":      0,
    "plans":      8,
    "rows" :      2},

{">>>pipeline": [{"$match":{"$and":[{"$or":[{"a_compound":{"$elemMatch":{"$gt":13}}},{"a_compound":{"$exists":true}}]},{"k_compound":{"$in":[14,6]}}],"k_idx":{"$nin":[3,20]}}},{"$sort":{"h_idx":1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[6.0, 6.0]","[14.0, 14.0]"]}}}},
    "keys" :    202,
    "docs" :    200,
    "sorts":   1260,
    "plans":     13,
    "rows" :    200},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$ne":17}},{"$or":[{"$and":[{"a_noidx":{"$all":[19,2,7,10]}},{"a_idx":{"$all":[4,2]}}]},{"k_compound":{"$eq":3}},{"a_idx":{"$elemMatch":{"$in":[10,6]}}},{"a_compound":{"$exists":true}}]}],"i_idx":{"$eq":19}}},{"$sort":{"k_idx":1}},{"$limit":230}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[19.0, 19.0]"]}}}},
    "keys" :      1,
    "docs" :      1,
    "sorts":      1,
    "plans":     14,
    "rows" :      1},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$all":[1,13]}},{"z_compound":{"$in":[19,3]}},{"i_compound":{"$gt":17}}],"h_idx":{"$nin":[6,1]}}},{"$project":{"k_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MinKey, 1.0)","(1.0, 6.0)","(6.0, MaxKey]"]}}}},
    "keys" :  98002,
    "docs" :  98000,
    "sorts":      0,
    "plans":     11,
    "rows" :  97989},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$eq":1}},{"a_compound":{"$lt":8}},{"$and":[{"a_idx":{"$all":[15,13]}},{"i_noidx":{"$exists":false}}]}],"z_idx":{"$nin":[6,6,11]}}},{"$project":{"a_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MinKey, 6.0)","(6.0, 11.0)","(11.0, MaxKey]"]}}}},
    "keys" :  99025,
    "docs" :  99023,
    "sorts":      0,
    "plans":     11,
    "rows" :  99002},

{">>>pipeline": [{"$match":{"$and":[{"k_compound":{"$gte":7}},{"h_compound":{"$exists":true}}],"a_compound":{"$nin":[1,4]}}},{"$sort":{"h_idx":-1}},{"$limit":110}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MaxKey, MinKey]"]}}}},
    "keys" :    208,
    "docs" :    208,
    "sorts":      0,
    "plans":      6,
    "rows" :    110},

{">>>pipeline": [{"$match":{"$nor":[{"a_noidx":{"$elemMatch":{"$exists":false}}},{"a_idx":{"$elemMatch":{"$exists":true,"$gt":9,"$nin":[2,16]}}},{"a_compound":{"$all":[2,16,9]}}],"a_noidx":{"$exists":true},"z_compound":{"$lte":3}}},{"$project":{"_id":0,"a_noidx":1,"i_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[MinKey, 9.0)","(9.0, MaxKey]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1_i_compound_1","indexBounds":{"a_compound":["[MinKey, MaxKey]"],"i_compound":["[MinKey, MaxKey]"]}}}]}}},
    "keys" : 927870,
    "docs" : 300000,
    "sorts":      0,
    "plans":     10,
    "rows" :      9},

{">>>pipeline": [{"$match":{"$and":[{"z_compound":{"$exists":true}},{"$or":[{"i_idx":{"$nin":[3,2]}},{"$or":[{"a_idx":{"$elemMatch":{"$nin":[12,2]}}},{"c_compound":{"$exists":false}},{"c_idx":{"$exists":true}},{"a_idx":{"$all":[6,10]}},{"a_compound":{"$all":[9,4]}}]}]}],"a_compound":{"$exists":true}}},{"$sort":{"c_idx":-1}},{"$project":{"_id":0,"a_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     14,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"a_compound":{"$elemMatch":{"$exists":true,"$lt":8}},"z_compound":{"$ne":12}}},{"$sort":{"a_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :  99978},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$exists":true}},{"c_compound":{"$nin":[13,17,2]}},{"a_compound":{"$all":[19,5,4]}}]}},{"$sort":{"h_idx":-1}},{"$limit":111}],
    "winningPlan": {"stage":"SUBPLAN","inputStage":{"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MaxKey, MinKey]"]}}}}},
    "keys" :    111,
    "docs" :    111,
    "sorts":      0,
    "plans":     10,
    "rows" :    111},

{">>>pipeline": [{"$match":{"a_compound":{"$nin":[16,20,16,1]},"i_compound":{"$exists":true},"i_noidx":{"$in":[16,8,3]}}},{"$project":{"a_idx":1,"k_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[MinKey, 1.0)","(1.0, 16.0)","(16.0, 20.0)","(20.0, MaxKey]"]}}}},
    "keys" : 422438,
    "docs" : 100000,
    "sorts":      0,
    "plans":      4,
    "rows" :      0},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$all":[10,19]}},{"a_compound":{"$exists":true}}],"i_compound":{"$gte":17}}},{"$project":{"_id":0,"h_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_compound_1","indexBounds":{"i_compound":["[17.0, inf]"]}}}},
    "keys" :  99983,
    "docs" :  99983,
    "sorts":      0,
    "plans":     11,
    "rows" :  99983},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$all":[6,13,7,2]}},{"d_compound":{"$nin":[13,2]}}],"a_idx":{"$elemMatch":{"$gte":19,"$ne":16}}}},{"$sort":{"z_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     12,
    "rows" :  89983},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$lt":20}},{"a_idx":{"$all":[14,15,20]}},{"a_compound":{"$nin":[3,16,12]}}],"a_idx":{"$elemMatch":{"$gte":14}}}},{"$sort":{"d_idx":-1}},{"$project":{"h_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     12,
    "rows" :  99986},

{">>>pipeline": [{"$match":{"a_compound":{"$nin":[15,7]},"z_compound":{"$lte":10}}},{"$sort":{"i_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :  88744},

{">>>pipeline": [{"$match":{"$and":[{"a_idx":{"$elemMatch":{"$exists":true}}},{"a_noidx":{"$lt":8}},{"d_noidx":{"$lte":15}},{"$or":[{"a_idx":{"$gt":10}},{"a_compound":{"$exists":false}},{"$and":[{"$nor":[{"a_compound":{"$ne":18}},{"d_noidx":{"$lte":20}}]},{"c_compound":{"$exists":false}}]}]},{"c_idx":{"$exists":true}}]}},{"$sort":{"d_idx":-1,"i_idx":-1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts": 1250847,
    "plans":      9,
    "rows" :  99967},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[1,13,15]}},{"a_compound":{"$exists":false}},{"a_compound":{"$nin":[9,12]}}],"z_idx":{"$ne":11}}},{"$sort":{"d_idx":-1}},{"$limit":101}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MaxKey, MinKey]"]}}}},
    "keys" :    101,
    "docs" :    101,
    "sorts":      0,
    "plans":     14,
    "rows" :    101},

{">>>pipeline": [{"$match":{"$or":[{"h_compound":{"$in":[16,6]}},{"a_compound":{"$nin":[18,2,4,2]}},{"i_compound":{"$lt":8}}],"i_idx":{"$gte":17}}},{"$sort":{"z_idx":-1}},{"$limit":176},{"$project":{"_id":0,"h_compound":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MaxKey, MinKey]"]}}}}},
    "keys" :    217,
    "docs" :    217,
    "sorts":      0,
    "plans":      6,
    "rows" :    176},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$elemMatch":{"$in":[11,3,2,3],"$ne":8}}},{"a_compound":{"$elemMatch":{"$gte":7}}}],"$nor":[{"a_compound":{"$all":[10,9,7]}},{"k_compound":{"$exists":false}},{"z_compound":{"$in":[13,20,20]}}]}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[2.0, 2.0]","[3.0, 3.0]","[11.0, 11.0]"]}}},
    "keys" :  65584,
    "docs" :  60140,
    "sorts":      0,
    "plans":     18,
    "rows" :  60134},

{">>>pipeline": [{"$match":{"a_compound":{"$in":[2,1,18]},"d_compound":{"$exists":true}}},{"$sort":{"c_idx":-1}},{"$limit":213}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MaxKey, MinKey]"]}}}},
    "keys" :    286,
    "docs" :    286,
    "sorts":      0,
    "plans":      5,
    "rows" :    213},

{">>>pipeline": [{"$match":{"a_compound":{"$nin":[8,5,9,17,3]},"k_compound":{"$ne":12}}},{"$sort":{"c_idx":-1}},{"$limit":13}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MaxKey, MinKey]"]}}}},
    "keys" :     30,
    "docs" :     30,
    "sorts":      0,
    "plans":      5,
    "rows" :     13},

{">>>pipeline": [{"$match":{"$and":[{"$nor":[{"a_compound":{"$elemMatch":{"$gte":17,"$ne":7}}},{"a_compound":{"$all":[19,16,4,1]}},{"a_compound":{"$in":[20,1,4,19]}},{"d_noidx":{"$exists":false}}]},{"a_compound":{"$elemMatch":{"$exists":true}}}],"k_noidx":{"$nin":[18,16]}}},{"$sort":{"a_idx":-1}},{"$limit":112}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":     15,
    "rows" :      7},

{">>>pipeline": [{"$match":{"$or":[{"$or":[{"a_idx":{"$all":[15,16,7]}},{"z_compound":{"$gt":11}}]},{"a_compound":{"$elemMatch":{"$exists":false,"$nin":[9,8]}}},{"a_idx":{"$gt":8}}],"a_compound":{"$in":[20,3,5]}}},{"$sort":{"c_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     13,
    "rows" :  37095},

{">>>pipeline": [{"$match":{"$or":[{"c_idx":{"$in":[16,6]}},{"a_compound":{"$lte":20}},{"c_compound":{"$exists":false}}],"a_idx":{"$elemMatch":{"$exists":true,"$in":[16,10,6]}}}},{"$project":{"_id":0,"a_compound":1,"a_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[6.0, 6.0]","[10.0, 10.0]","[16.0, 16.0]"]}}}},
    "keys" :  12883,
    "docs" :  11875,
    "sorts":      0,
    "plans":      5,
    "rows" :  11875},

{">>>pipeline": [{"$match":{"a_compound":{"$elemMatch":{"$nin":[7,16]}},"i_idx":{"$nin":[19,8]},"z_compound":{"$lte":19}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[MinKey, 7.0)","(7.0, 16.0)","(16.0, MaxKey]"]}}},
    "keys" : 457686,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :  99998},

{">>>pipeline": [{"$match":{"$and":[{"z_noidx":{"$gte":6}},{"k_noidx":{"$exists":true}},{"$and":[{"a_idx":{"$gte":20}},{"c_compound":{"$nin":[8,14]}}]}],"a_compound":{"$elemMatch":{"$exists":true}}}},{"$sort":{"d_idx":-1}},{"$limit":109}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MaxKey, MinKey]"]}}}},
    "keys" :   7886,
    "docs" :   7886,
    "sorts":      0,
    "plans":      6,
    "rows" :    109},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$all":[4,5,14,4]}},{"d_compound":{"$exists":true}},{"h_idx":{"$gt":12}}],"c_compound":{"$lt":6},"i_compound":{"$ne":10}}},{"$sort":{"a_idx":1}},{"$limit":171}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}}},
    "keys" :    172,
    "docs" :    172,
    "sorts":      0,
    "plans":     15,
    "rows" :    171},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$in":[13,19,1,16]}},{"c_compound":{"$lt":7}},{"a_compound":{"$elemMatch":{"$eq":7}}}],"h_compound":{"$eq":3}}},{"$sort":{"a_idx":1,"k_idx":1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_compound_1","indexBounds":{"h_compound":["[3.0, 3.0]"]}}}},
    "keys" :   1000,
    "docs" :   1000,
    "sorts":   7908,
    "plans":      9,
    "rows" :   1000},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$gte":11}},{"a_compound":{"$elemMatch":{"$ne":4}}},{"a_compound":{"$elemMatch":{"$exists":true,"$in":[8,4,6],"$ne":4}}}]}},{"$project":{"_id":0,"a_noidx":1,"h_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[6.0, 6.0]","[8.0, 8.0]"]}}}},
    "keys" :  20956,
    "docs" :  20843,
    "sorts":      0,
    "plans":      6,
    "rows" :  20841},

{">>>pipeline": [{"$match":{"$or":[{"$or":[{"a_idx":{"$all":[11,4,4]}},{"a_idx":{"$eq":15}}]},{"$and":[{"c_compound":{"$in":[13,1,20,15]}},{"$or":[{"c_noidx":{"$exists":true}},{"a_noidx":{"$all":[8,19]}}]}]},{"$nor":[{"$and":[{"a_compound":{"$elemMatch":{"$in":[12,12,20,1]}}},{"$or":[{"a_idx":{"$exists":true}},{"a_noidx":{"$elemMatch":{"$gte":15,"$in":[4,9]}}},{"k_noidx":{"$exists":true}}]}]},{"a_idx":{"$exists":true}},{"a_compound":{"$gt":6}}]}],"d_compound":{"$lte":2},"d_noidx":{"$ne":12}}},{"$sort":{"d_idx":1,"h_idx":-1,"z_idx":1}},{"$limit":58}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_compound_1","indexBounds":{"c_compound":["[1.0, 1.0]","[13.0, 13.0]","[15.0, 15.0]","[20.0, 20.0]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[11.0, 11.0]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[MinKey, 6.0]","(inf, MaxKey]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_compound_1_d_compound_1","indexBounds":{"c_compound":["[1.0, 1.0]","[13.0, 13.0]","[15.0, 15.0]","[20.0, 20.0]"],"d_compound":["[-inf, 2.0]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1_i_compound_1","indexBounds":{"a_compound":["[MinKey, 6.0]","(inf, MaxKey]"],"i_compound":["[MinKey, MaxKey]"]}}},{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[15.0, 15.0]"]}}]}}},
    "keys" : 451165,
    "docs" : 361789,
    "sorts": 151813,
    "plans":     12,
    "rows" :     58},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$all":[13,16,1]}},{"k_compound":{"$gt":16}},{"a_compound":{"$elemMatch":{"$eq":19,"$exists":true}}}],"a_compound":{"$gt":7}}},{"$sort":{"d_idx":1}},{"$project":{"_id":0,"k_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     13,
    "rows" :  98300},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$ne":9}},{"$nor":[{"a_compound":{"$in":[16,14]}},{"a_idx":{"$all":[16,1]}}]}],"k_idx":{"$in":[10,14]}}},{"$sort":{"h_idx":1,"k_idx":-1,"z_idx":-1}},{"$project":{"_id":0,"a_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[10.0, 10.0]","[14.0, 14.0]"]}}}}},
    "keys" :    202,
    "docs" :    200,
    "sorts":    561,
    "plans":      6,
    "rows" :    100},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[4,9,18,2]}},{"h_compound":{"$exists":false}}],"a_compound":{"$elemMatch":{"$exists":true,"$nin":[1,6,6]}}}},{"$sort":{"k_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     14,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$and":[{"$nor":[{"a_compound":{"$all":[1,5,19]}},{"c_compound":{"$gte":8}}]},{"a_compound":{"$elemMatch":{"$exists":true}}}],"$nor":[{"i_compound":{"$in":[1,11]}},{"a_noidx":{"$elemMatch":{"$in":[1,12]}}}]}},{"$sort":{"k_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     15,
    "rows" :  54905},

{">>>pipeline": [{"$match":{"$or":[{"h_compound":{"$in":[3,3]}},{"h_idx":{"$exists":true}},{"$and":[{"a_compound":{"$all":[3,8,3,4]}},{"a_compound":{"$exists":false}},{"z_compound":{"$nin":[11,18,15]}}]}],"a_noidx":{"$all":[1,10]},"d_idx":{"$exists":true}}},{"$sort":{"h_idx":-1}},{"$limit":56}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MaxKey, MinKey]"]}}}},
    "keys" :  89144,
    "docs" :  89144,
    "sorts":      0,
    "plans":     12,
    "rows" :     56},

{">>>pipeline": [{"$match":{"$nor":[{"d_compound":{"$eq":20}},{"a_compound":{"$all":[11,16,10]}}],"k_noidx":{"$ne":5}}},{"$sort":{"a_idx":1}},{"$project":{"_id":0,"a_noidx":1,"d_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":     11,
    "rows" :  99900},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$all":[11,20,8,15,7]}},{"$or":[{"i_compound":{"$exists":true}},{"a_compound":{"$elemMatch":{"$exists":true,"$gt":17}}}]},{"a_compound":{"$elemMatch":{"$eq":4}}},{"h_idx":{"$in":[12,19,1]}},{"d_idx":{"$ne":3}}],"a_compound":{"$elemMatch":{"$gte":8,"$lte":13}}}},{"$project":{"_id":0,"a_compound":1,"a_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[8.0, 13.0]"]}}}},
    "keys" :  24105,
    "docs" :  24088,
    "sorts":      0,
    "plans":     12,
    "rows" :  24088},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$all":[6,13]}},{"a_idx":{"$elemMatch":{"$exists":true}}},{"i_compound":{"$gte":5}},{"a_compound":{"$elemMatch":{"$nin":[11,9,19]}}}],"a_compound":{"$gte":10}}},{"$sort":{"i_idx":-1}},{"$project":{"_id":0,"h_compound":1,"k_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     13,
    "rows" :  99990},

{">>>pipeline": [{"$match":{"$nor":[{"z_idx":{"$exists":false}},{"a_idx":{"$elemMatch":{"$in":[14,8,2,18,5]}}},{"a_compound":{"$all":[6,10]}}],"a_noidx":{"$elemMatch":{"$gte":2}}}},{"$sort":{"d_idx":1,"i_idx":1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts": 525127,
    "plans":      5,
    "rows" :  44841},

{">>>pipeline": [{"$match":{"$and":[{"$or":[{"d_compound":{"$exists":true}},{"a_compound":{"$nin":[20,10,18]}},{"a_compound":{"$elemMatch":{"$in":[19,4,9],"$lte":5}}}]},{"i_idx":{"$lte":10}},{"a_idx":{"$gt":8}}],"c_compound":{"$nin":[18,9]}}},{"$sort":{"i_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[10.0, -inf]"]}}},
    "keys" :     11,
    "docs" :     11,
    "sorts":      0,
    "plans":     14,
    "rows" :      2},

{">>>pipeline": [{"$match":{"$or":[{"$or":[{"a_compound":{"$elemMatch":{"$eq":16,"$exists":true}}},{"a_idx":{"$all":[7,14]}},{"$or":[{"c_compound":{"$lte":11}},{"a_compound":{"$elemMatch":{"$in":[19,6,14],"$nin":[5,12,11,16,15]}}},{"h_idx":{"$gt":5}},{"i_compound":{"$nin":[6,9]}}]}]},{"d_compound":{"$exists":true}}],"h_compound":{"$gt":17}}},{"$sort":{"c_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     12,
    "rows" :  82000},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$elemMatch":{"$lte":17}}},{"z_compound":{"$nin":[9,9]}}],"a_compound":{"$eq":2}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[2.0, 2.0]"]}}},
    "keys" :  38792,
    "docs" :  38792,
    "sorts":      0,
    "plans":      6,
    "rows" :  38792},

{">>>pipeline": [{"$match":{"$nor":[{"k_noidx":{"$in":[15,4]}},{"z_idx":{"$gte":12}},{"a_compound":{"$all":[15,10]}}],"a_compound":{"$elemMatch":{"$nin":[2,15]}}}},{"$sort":{"a_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      8,
    "rows" :  99800},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[3,18]}},{"a_idx":{"$elemMatch":{"$in":[8,2]}}}],"h_noidx":{"$in":[5,11]}}},{"$sort":{"d_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :   1358},

{">>>pipeline": [{"$match":{"$nor":[{"k_idx":{"$exists":false}},{"i_noidx":{"$nin":[9,11,14,2]}}],"$or":[{"a_idx":{"$all":[20,7,15,7]}},{"a_idx":{"$gte":19}},{"a_compound":{"$all":[2,4]}}]}},{"$sort":{"c_idx":1,"k_idx":-1,"z_idx":1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      1,
    "plans":     10,
    "rows" :      1},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$lt":12}},{"a_compound":{"$in":[11,12,3,11]}}],"a_idx":{"$elemMatch":{"$exists":true,"$lte":17}}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[3.0, 3.0]","[11.0, 11.0]","[12.0, 12.0]"]}}},
    "keys" :  27792,
    "docs" :  27451,
    "sorts":      0,
    "plans":      5,
    "rows" :  27451},

{">>>pipeline": [{"$match":{"$or":[{"k_compound":{"$ne":2}},{"a_idx":{"$all":[5,16]}}],"a_idx":{"$elemMatch":{"$nin":[3,11,5,10]}}}},{"$sort":{"a_idx":-1}},{"$project":{"a_noidx":1,"h_noidx":1,"i_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      8,
    "rows" :  99899},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$elemMatch":{"$gt":12}}},{"a_idx":{"$all":[14,5,19]}}],"d_compound":{"$exists":true}}},{"$sort":{"k_idx":-1}},{"$limit":177},{"$project":{"_id":0,"a_compound":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MaxKey, MinKey]"]}}}}},
    "keys" :    177,
    "docs" :    177,
    "sorts":      0,
    "plans":     11,
    "rows" :    177},

{">>>pipeline": [{"$match":{"$or":[{"d_compound":{"$exists":true}},{"k_compound":{"$nin":[19,18,20,19]}}],"a_compound":{"$eq":4},"k_compound":{"$nin":[3,13,17]}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[4.0, 4.0]"]}}},
    "keys" :  17094,
    "docs" :  17094,
    "sorts":      0,
    "plans":      8,
    "rows" :  17067},

{">>>pipeline": [{"$match":{"$or":[{"i_idx":{"$exists":true}},{"$and":[{"a_compound":{"$all":[6,12,11]}},{"a_compound":{"$nin":[12,2,4]}},{"a_idx":{"$all":[10,3]}}]}],"a_compound":{"$all":[2,20]}}},{"$project":{"_id":0,"a_noidx":1,"i_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[20.0, 20.0]"]}}}},
    "keys" :   1000,
    "docs" :   1000,
    "sorts":      0,
    "plans":     15,
    "rows" :    320},

{">>>pipeline": [{"$match":{"$nor":[{"c_compound":{"$exists":false}},{"i_compound":{"$exists":false}}],"$or":[{"a_compound":{"$all":[12,15,18]}},{"h_compound":{"$gte":14}},{"i_compound":{"$nin":[12,12,11]}},{"i_compound":{"$exists":false}}]}},{"$sort":{"c_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     14,
    "rows" :  99998},

{">>>pipeline": [{"$match":{"$nor":[{"h_compound":{"$in":[4,14,13,16,7,9]}},{"a_compound":{"$all":[1,7,16,14,15]}}],"d_noidx":{"$exists":true}}},{"$sort":{"c_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     12,
    "rows" :  94000},

{">>>pipeline": [{"$match":{"a_compound":{"$all":[2,3]},"a_idx":{"$gte":6}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[3.0, 3.0]"]}}},
    "keys" :  25786,
    "docs" :  25786,
    "sorts":      0,
    "plans":      6,
    "rows" :   4939},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$elemMatch":{"$exists":false}}},{"a_compound":{"$all":[3,20,12,13,1]}}],"a_compound":{"$exists":true}}},{"$project":{"_id":0,"a_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[MinKey, MaxKey]"]}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":     12,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$nor":[{"k_compound":{"$exists":false}},{"i_noidx":{"$nin":[10,9]}},{"a_compound":{"$all":[16,11,18,9]}}],"a_compound":{"$elemMatch":{"$exists":true}}}},{"$sort":{"z_idx":1}},{"$project":{"_id":0,"d_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     15,
    "rows" :      2},

{">>>pipeline": [{"$match":{"a_compound":{"$eq":2},"a_idx":{"$elemMatch":{"$nin":[10,20,5]}},"k_compound":{"$gte":5}}},{"$project":{"_id":0,"h_compound":1,"k_compound":1,"k_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[2.0, 2.0]"]}}}},
    "keys" :  38792,
    "docs" :  38792,
    "sorts":      0,
    "plans":      5,
    "rows" :  38570},

{">>>pipeline": [{"$match":{"$and":[{"c_noidx":{"$exists":true}},{"a_idx":{"$gte":3}},{"d_compound":{"$lte":17}}],"a_compound":{"$exists":true},"i_compound":{"$gte":3}}},{"$sort":{"i_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      8,
    "rows" :  99997},

{">>>pipeline": [{"$match":{"$nor":[{"a_idx":{"$all":[20,9]}},{"a_idx":{"$all":[1,9]}}],"a_compound":{"$lte":10},"a_noidx":{"$lt":13}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[-inf, 10.0]"]}}},
    "keys" : 190937,
    "docs" : 100000,
    "sorts":      0,
    "plans":      4,
    "rows" :  96241},

{">>>pipeline": [{"$match":{"$and":[{"h_idx":{"$lt":7}},{"$or":[{"a_idx":{"$all":[6,20,11,2]}},{"a_compound":{"$nin":[12,17]}},{"$and":[{"a_compound":{"$elemMatch":{"$exists":false,"$ne":12}}},{"c_noidx":{"$exists":true}},{"z_noidx":{"$in":[2,5,15]}}]}]}],"a_idx":{"$elemMatch":{"$exists":true,"$ne":18}}}},{"$sort":{"h_idx":1}},{"$project":{"_id":0,"d_idx":1,"d_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[-inf, 7.0)"]}}}},
    "keys" :   7000,
    "docs" :   7000,
    "sorts":      0,
    "plans":     12,
    "rows" :   7000},

{">>>pipeline": [{"$match":{"c_compound":{"$nin":[16,17]},"c_idx":{"$ne":12}}},{"$sort":{"z_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      4,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$exists":true}},{"z_compound":{"$nin":[12,8,10]}},{"k_compound":{"$gte":10}}],"a_idx":{"$in":[2,19]}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[2.0, 2.0]","[19.0, 19.0]"]}}},
    "keys" :  39794,
    "docs" :  39470,
    "sorts":      0,
    "plans":      9,
    "rows" :  39470},

{">>>pipeline": [{"$match":{"a_compound":{"$exists":true},"k_compound":{"$ne":3},"z_compound":{"$lte":10}}},{"$sort":{"a_idx":-1}},{"$limit":87},{"$project":{"_id":0,"a_idx":1,"h_idx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}}}},
    "keys" :     87,
    "docs" :     87,
    "sorts":      0,
    "plans":      7,
    "rows" :     87},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$nin":[16,14,17,16]}},{"a_compound":{"$all":[10,18,14]}}],"h_compound":{"$exists":true}}},{"$sort":{"c_idx":-1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[14.0, 14.0]","[16.0, 16.0]","[17.0, 17.0]"]}}}},
    "keys" :   3002,
    "docs" :   3000,
    "sorts":  27019,
    "plans":     12,
    "rows" :   3000},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[4,14,7,17]}},{"a_compound":{"$nin":[7,16]}}],"a_compound":{"$gte":14},"a_noidx":{"$lte":4}}},{"$limit":186},{"$project":{"h_idx":1,"h_noidx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[7.0, 7.0]","[16.0, 16.0]"]}}}}},
    "keys" :    194,
    "docs" :    194,
    "sorts":      0,
    "plans":     14,
    "rows" :    186},

{">>>pipeline": [{"$match":{"$nor":[{"a_idx":{"$nin":[17,2,14]}},{"h_compound":{"$lte":4}}],"$or":[{"a_idx":{"$in":[7,19,5]}},{"$nor":[{"c_idx":{"$nin":[19,17]}},{"k_compound":{"$gte":15}}]},{"a_compound":{"$all":[2,18,9]}}],"a_noidx":{"$gt":14}}},{"$sort":{"c_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     12,
    "rows" :   7721},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$in":[16,9]}},{"$or":[{"a_compound":{"$elemMatch":{"$exists":false,"$lt":19}}},{"a_compound":{"$elemMatch":{"$exists":true,"$in":[14,9]}}}]},{"z_idx":{"$lt":20}},{"a_idx":{"$all":[5,8]}}],"h_idx":{"$gte":7}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[7.0, inf]"]}}},
    "keys" :  93000,
    "docs" :  93000,
    "sorts":      0,
    "plans":     11,
    "rows" :  93000},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[14,4,2,11]}},{"a_compound":{"$exists":false}},{"h_noidx":{"$nin":[13,2]}}],"c_noidx":{"$exists":true}}},{"$sort":{"h_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     13,
    "rows" :   2000},

{">>>pipeline": [{"$match":{"$nor":[{"d_idx":{"$in":[3,10]}},{"z_compound":{"$nin":[7,4]}}],"a_compound":{"$gt":1},"a_noidx":{"$lt":12}}},{"$project":{"a_compound":1,"a_idx":1,"h_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_compound_1","indexBounds":{"z_compound":["[4.0, 4.0]","[7.0, 7.0]"]}}}},
    "keys" :   8189,
    "docs" :   8187,
    "sorts":      0,
    "plans":      5,
    "rows" :   7391},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$all":[16,8]}},{"a_idx":{"$all":[3,5,18]}},{"$or":[{"a_idx":{"$all":[6,19]}},{"z_compound":{"$exists":true}}]}],"a_compound":{"$elemMatch":{"$exists":true}}}},{"$sort":{"z_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     13,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$elemMatch":{"$exists":false}}},{"h_compound":{"$in":[11,18,16]}},{"i_idx":{"$exists":true}},{"a_compound":{"$all":[10,1]}},{"a_compound":{"$eq":20}}],"a_compound":{"$gte":18}}},{"$project":{"a_compound":1,"k_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[18.0, inf]"]}}}},
    "keys" : 271000,
    "docs" :  99982,
    "sorts":      0,
    "plans":     11,
    "rows" :  99982},

{">>>pipeline": [{"$match":{"$nor":[{"a_idx":{"$elemMatch":{"$lte":3,"$nin":[14,7,20]}}},{"z_compound":{"$lt":3}},{"a_compound":{"$all":[9,13,15]}},{"a_idx":{"$in":[12,10]}}],"z_idx":{"$gt":1}}},{"$sort":{"h_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     13,
    "rows" :   7264},

{">>>pipeline": [{"$match":{"$or":[{"$and":[{"$and":[{"a_idx":{"$all":[18,6,2,17]}},{"a_idx":{"$gt":7}},{"a_compound":{"$eq":2}}]},{"a_compound":{"$elemMatch":{"$eq":10}}},{"a_noidx":{"$exists":true}},{"a_compound":{"$elemMatch":{"$lte":7}}},{"d_compound":{"$exists":true}}]},{"a_compound":{"$exists":true}},{"a_compound":{"$all":[17,5]}}],"h_compound":{"$exists":true}}},{"$project":{"_id":0,"a_noidx":1,"c_idx":1,"i_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_compound_1","indexBounds":{"h_compound":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     11,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$or":[{"$and":[{"z_idx":{"$ne":13}},{"k_compound":{"$lt":5}},{"a_idx":{"$elemMatch":{"$exists":true}}}]},{"z_compound":{"$lte":15}}],"a_idx":{"$lte":10}}},{"$sort":{"k_idx":1,"z_idx":-1}},{"$skip":6}],
    "winningPlan": {"stage":"SKIP","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[-inf, 10.0]"]}}}}},
    "keys" : 190937,
    "docs" : 100000,
    "sorts": 1251293,
    "plans":      7,
    "rows" :  99994},

{">>>pipeline": [{"$match":{"$or":[{"i_compound":{"$exists":false}},{"a_compound":{"$elemMatch":{"$exists":true}}},{"a_compound":{"$in":[3,20,18]}}],"a_compound":{"$nin":[10,5,17]}}},{"$sort":{"d_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     13,
    "rows" :  85528},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$all":[17,10]}},{"k_compound":{"$eq":11}},{"c_compound":{"$lt":5}}]}},{"$sort":{"a_idx":1}},{"$project":{"a_idx":1}}],
    "winningPlan": {"stage":"SUBPLAN","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":     11,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$all":[13,17,6]}},{"a_compound":{"$elemMatch":{"$exists":true,"$lte":8}}}],"a_noidx":{"$eq":11}}},{"$sort":{"d_idx":1}},{"$limit":137},{"$project":{"_id":0,"a_noidx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" :  11362,
    "docs" :  11362,
    "sorts":      0,
    "plans":      9,
    "rows" :    137},

{">>>pipeline": [{"$match":{"a_compound":{"$elemMatch":{"$nin":[7,19]}},"d_noidx":{"$nin":[12,2,19,2]},"z_idx":{"$nin":[15,2]}}},{"$sort":{"i_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      4,
    "rows" :  61208},

{">>>pipeline": [{"$match":{"$and":[{"$or":[{"a_compound":{"$all":[14,9,19,8]}},{"k_idx":{"$exists":true}}]},{"a_noidx":{"$elemMatch":{"$eq":4}}}],"a_idx":{"$lte":6}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[-inf, 6.0]"]}}},
    "keys" : 159579,
    "docs" :  99892,
    "sorts":      0,
    "plans":     10,
    "rows" :  17094},

{">>>pipeline": [{"$match":{"$or":[{"$and":[{"z_idx":{"$nin":[16,18,2]}},{"k_idx":{"$nin":[7,6,2]}}]},{"a_idx":{"$gt":12}},{"a_compound":{"$nin":[8,1]}},{"i_idx":{"$gt":3}}],"a_compound":{"$exists":true},"a_noidx":{"$lte":16},"d_compound":{"$exists":true}}},{"$sort":{"k_idx":1}},{"$limit":225}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MinKey, MaxKey]"]}}}},
    "keys" :    226,
    "docs" :    226,
    "sorts":      0,
    "plans":      9,
    "rows" :    225},

{">>>pipeline": [{"$match":{"$and":[{"a_noidx":{"$ne":6}},{"$or":[{"a_compound":{"$all":[2,14,5]}},{"a_noidx":{"$all":[17,6]}},{"k_compound":{"$exists":true}}]},{"a_compound":{"$exists":true}}]}},{"$project":{"_id":0,"a_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[MinKey, MaxKey]"]}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":     11,
    "rows" :  89127},

{">>>pipeline": [{"$match":{"$and":[{"a_idx":{"$lt":15}},{"a_compound":{"$nin":[15,13,2]}},{"a_idx":{"$gte":15}}],"i_compound":{"$nin":[4,7,1]}}},{"$sort":{"d_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      7,
    "rows" :  59874},

{">>>pipeline": [{"$match":{"$nor":[{"$and":[{"i_compound":{"$gt":6}},{"h_idx":{"$nin":[10,19]}},{"a_compound":{"$lt":1}}]},{"h_noidx":{"$exists":false}}],"h_compound":{"$exists":true},"z_compound":{"$lte":18}}},{"$sort":{"h_idx":-1}},{"$project":{"a_idx":1,"z_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      8,
    "rows" :  91001},

{">>>pipeline": [{"$match":{"$and":[{"$or":[{"a_compound":{"$exists":true}},{"a_idx":{"$nin":[2,9,5,11]}},{"a_idx":{"$all":[7,16,13]}},{"d_idx":{"$exists":true}},{"a_compound":{"$eq":7}}]},{"a_compound":{"$elemMatch":{"$gt":20,"$gte":3}}}],"a_compound":{"$elemMatch":{"$exists":true}}}},{"$project":{"a_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["(20.0, inf]"]}}}},
    "keys" : 268000,
    "docs" :  99979,
    "sorts":      0,
    "plans":     14,
    "rows" :  99979},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$all":[16,14,10,13]}},{"a_idx":{"$all":[20,13,8]}},{"$or":[{"i_idx":{"$gt":11}},{"z_compound":{"$in":[9,3,13,5]}}]}],"h_compound":{"$nin":[7,6]}}},{"$sort":{"c_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     11,
    "rows" :  97993},

{">>>pipeline": [{"$match":{"$or":[{"h_compound":{"$exists":false}},{"a_compound":{"$all":[16,6,7]}},{"c_compound":{"$ne":13}}],"i_compound":{"$lte":1}}},{"$sort":{"a_idx":1,"i_idx":-1,"k_idx":1}},{"$limit":186}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_compound_1","indexBounds":{"i_compound":["[-inf, 1.0]"]}}}},
    "keys" :      2,
    "docs" :      2,
    "sorts":      3,
    "plans":     11,
    "rows" :      2},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$nin":[13,9,10]}},{"$and":[{"z_idx":{"$lte":12}},{"a_compound":{"$lt":5}},{"c_compound":{"$gte":1}}]}]}},{"$sort":{"h_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      8,
    "rows" :  86263},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$exists":true}},{"a_compound":{"$all":[1,7]}}],"a_compound":{"$gte":1}}},{"$sort":{"i_idx":1,"z_idx":1}},{"$limit":65}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[1.0, inf]"]}}}},
    "keys" : 458941,
    "docs" : 100000,
    "sorts": 517439,
    "plans":     11,
    "rows" :     65},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$nin":[20,6]}},{"a_compound":{"$all":[14,11]}},{"a_idx":{"$all":[20,7,4]}}],"a_compound":{"$in":[19,1]}}},{"$project":{"a_compound":1,"a_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[1.0, 1.0]","[19.0, 19.0]"]}}}},
    "keys" :  45508,
    "docs" :  45110,
    "sorts":      0,
    "plans":     11,
    "rows" :  40776},

{">>>pipeline": [{"$match":{"$nor":[{"a_noidx":{"$elemMatch":{"$nin":[4,20,3,2,12]}}},{"a_compound":{"$all":[4,12,17,20]}}],"c_compound":{"$exists":true}}},{"$sort":{"c_idx":-1,"i_idx":-1,"z_idx":-1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_compound_1","indexBounds":{"c_compound":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      3,
    "plans":     12,
    "rows" :      2},

{">>>pipeline": [{"$match":{"c_compound":{"$exists":true},"k_compound":{"$ne":1}}},{"$sort":{"i_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :  99900},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[19,8,10]}},{"a_noidx":{"$in":[17,8,17,19]}},{"i_compound":{"$exists":false}}],"c_idx":{"$exists":true}}},{"$limit":187},{"$project":{"_id":0,"a_idx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[MinKey, MaxKey]"]}}}}}},
    "keys" :    188,
    "docs" :    376,
    "sorts":      0,
    "plans":     11,
    "rows" :    187},

{">>>pipeline": [{"$match":{"$or":[{"k_compound":{"$gt":11}},{"a_compound":{"$all":[5,4,3,4,1,12]}}],"a_compound":{"$in":[16,20]},"d_compound":{"$gt":3}}},{"$project":{"a_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[16.0, 16.0]","[20.0, 20.0]"]}}}},
    "keys" :   2002,
    "docs" :   2000,
    "sorts":      0,
    "plans":     14,
    "rows" :   1000},

{">>>pipeline": [{"$match":{"$or":[{"k_idx":{"$in":[3,9]}},{"i_idx":{"$gt":12}},{"a_compound":{"$all":[19,19,12,5]}}],"a_compound":{"$in":[9,3,2]}}},{"$project":{"_id":0,"z_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[2.0, 2.0]","[3.0, 3.0]","[9.0, 9.0]"]}}}},
    "keys" :  74593,
    "docs" :  64577,
    "sorts":      0,
    "plans":      9,
    "rows" :  64570},

{">>>pipeline": [{"$match":{"$and":[{"a_idx":{"$elemMatch":{"$lt":4,"$lte":8}}},{"a_compound":{"$all":[2,13,3]}}]}},{"$sort":{"z_idx":1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[13.0, 13.0]"]}}}},
    "keys" :   1000,
    "docs" :   1000,
    "sorts":   2338,
    "plans":      9,
    "rows" :    342},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$gte":1}},{"a_compound":{"$exists":true}}],"$or":[{"a_compound":{"$ne":13}},{"a_idx":{"$all":[4,5,19]}},{"$and":[{"h_compound":{"$exists":false}},{"d_noidx":{"$exists":false}}]}]}},{"$limit":57}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[1.0, inf]"]}}}},
    "keys" :     57,
    "docs" :     57,
    "sorts":      0,
    "plans":     12,
    "rows" :     57},

{">>>pipeline": [{"$match":{"$or":[{"$and":[{"h_idx":{"$gte":11}},{"a_idx":{"$elemMatch":{"$exists":true,"$in":[14,10]}}}]},{"c_compound":{"$gte":4}},{"a_idx":{"$in":[4,1,2]}}],"a_idx":{"$exists":true}}},{"$sort":{"d_idx":1,"i_idx":1,"z_idx":-1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts": 1046701,
    "plans":      5,
    "rows" :  84769},

{">>>pipeline": [{"$match":{"$and":[{"$nor":[{"a_idx":{"$exists":false}},{"$nor":[{"d_compound":{"$in":[12,17]}},{"a_compound":{"$all":[5,10,1]}},{"c_idx":{"$lte":2}}]},{"a_noidx":{"$lt":2}},{"z_compound":{"$exists":false}}]},{"a_idx":{"$lt":12}}],"$or":[{"a_idx":{"$exists":true}},{"d_noidx":{"$in":[20,2,8,16]}}]}},{"$sort":{"i_idx":1}},{"$project":{"_id":0,"a_compound":1,"d_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     14,
    "rows" :  49275},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$nin":[18,4]}},{"a_noidx":{"$elemMatch":{"$nin":[3,8]}}},{"a_idx":{"$elemMatch":{"$in":[17,19,1],"$lt":15}}}],"a_idx":{"$elemMatch":{"$eq":9}}}},{"$sort":{"c_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      6,
    "rows" :   3759},

{">>>pipeline": [{"$match":{"a_compound":{"$elemMatch":{"$lt":20,"$nin":[11,7,8]}},"i_compound":{"$nin":[13,1,13]}}},{"$sort":{"a_idx":1,"h_idx":-1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1_i_compound_1","indexBounds":{"a_compound":["[-inf, 7.0)","(7.0, 8.0)","(8.0, 11.0)","(11.0, 20.0)"],"i_compound":["[MinKey, 1.0)","(1.0, 13.0)","(13.0, MaxKey]"]}}}},
    "keys" : 178603,
    "docs" :  99940,
    "sorts": 1250482,
    "plans":      4,
    "rows" :  99940},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$lte":8}},{"k_idx":{"$ne":8}},{"d_compound":{"$gte":17}},{"a_compound":{"$all":[10,8]}}],"a_noidx":{"$elemMatch":{"$gt":3,"$lte":20,"$nin":[15,1,9]}}}},{"$sort":{"a_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":     10,
    "rows" :  61351},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$exists":true}},{"$or":[{"a_compound":{"$all":[6,5]}},{"z_compound":{"$nin":[8,13]}}]}]}},{"$limit":220}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[MinKey, MaxKey]"]}}}},
    "keys" :    221,
    "docs" :    221,
    "sorts":      0,
    "plans":     11,
    "rows" :    220},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$exists":true}},{"d_compound":{"$exists":true}},{"a_idx":{"$lt":15}},{"k_idx":{"$lt":16}}],"a_compound":{"$elemMatch":{"$in":[9,13,20]}},"a_idx":{"$gt":1}}},{"$sort":{"a_idx":1}},{"$limit":95}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[-inf, 16.0)"]}}}},
    "keys" :   1600,
    "docs" :   1600,
    "sorts":   1111,
    "plans":     10,
    "rows" :     95},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$nin":[4,1]}},{"$or":[{"a_idx":{"$all":[7,17,18]}},{"a_compound":{"$all":[12,9,19]}},{"k_compound":{"$gte":7}}]}],"d_compound":{"$exists":true}}},{"$project":{"a_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[MinKey, 1.0)","(1.0, 4.0)","(4.0, MaxKey]"]}}}},
    "keys" : 407343,
    "docs" :  99999,
    "sorts":      0,
    "plans":     13,
    "rows" :  42728},

{">>>pipeline": [{"$match":{"$nor":[{"$or":[{"a_compound":{"$all":[4,5,20]}},{"a_compound":{"$in":[7,8,17]}}]},{"a_compound":{"$elemMatch":{"$eq":11}}},{"a_compound":{"$exists":false}}],"a_compound":{"$elemMatch":{"$in":[20,19]}}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[19.0, 19.0]","[20.0, 20.0]"]}}},
    "keys" :   2001,
    "docs" :   2000,
    "sorts":      0,
    "plans":     14,
    "rows" :   1993},

{">>>pipeline": [{"$match":{"$or":[{"$or":[{"h_idx":{"$in":[18,11]}},{"$and":[{"a_idx":{"$all":[9,7]}},{"a_noidx":{"$exists":false}},{"a_idx":{"$gte":11}},{"k_compound":{"$lt":8}}]},{"a_idx":{"$in":[18,14]}}]},{"k_compound":{"$gt":7}}],"h_compound":{"$lte":11}}},{"$sort":{"i_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     11,
    "rows" :  11200},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$elemMatch":{"$exists":true}}},{"a_idx":{"$gt":20}},{"z_compound":{"$lte":5}}],"k_compound":{"$gte":9}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["(20.0, inf]"]}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1_a_compound_1","indexBounds":{"k_compound":["[9.0, inf]"],"a_compound":["[MinKey, MaxKey]"]}}},{"stage":"IXSCAN","indexName":"z_compound_1_c_compound_1","indexBounds":{"z_compound":["[-inf, 5.0]"],"c_compound":["[MinKey, MaxKey]"]}}]}},
    "keys" : 832971,
    "docs" : 199100,
    "sorts":      0,
    "plans":      8,
    "rows" :  99100},

{">>>pipeline": [{"$match":{"k_compound":{"$lte":8},"z_compound":{"$gte":1}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[-inf, 8.0]"]}}},
    "keys" :    900,
    "docs" :    900,
    "sorts":      0,
    "plans":      4,
    "rows" :    900},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$exists":false}},{"h_idx":{"$lt":6}},{"z_idx":{"$nin":[3,20,11]}},{"a_compound":{"$exists":false}}],"k_compound":{"$exists":true}}},{"$sort":{"h_idx":-1}},{"$project":{"_id":0,"a_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      6,
    "rows" :  83571},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[10,16,10]}},{"$nor":[{"k_compound":{"$ne":5}},{"h_compound":{"$eq":3}},{"a_noidx":{"$lte":5}},{"a_noidx":{"$exists":false}},{"z_compound":{"$gte":6}},{"a_compound":{"$exists":true}}]},{"a_idx":{"$elemMatch":{"$in":[7,12],"$lte":2}}}],"a_compound":{"$eq":10},"a_noidx":{"$elemMatch":{"$gte":6}}}},{"$sort":{"d_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :   1007},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$ne":7}},{"$and":[{"a_idx":{"$nin":[17,11,10]}},{"a_idx":{"$ne":13}},{"$nor":[{"a_idx":{"$eq":3}},{"d_noidx":{"$lt":10}}]},{"a_compound":{"$all":[15,9,17]}},{"a_idx":{"$elemMatch":{"$lte":20}}},{"a_compound":{"$elemMatch":{"$exists":true,"$in":[19,1]}}}]}]}},{"$sort":{"h_idx":-1}}],
    "winningPlan": {"stage":"SUBPLAN","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     11,
    "rows" :  89743},

{">>>pipeline": [{"$match":{"$and":[{"h_noidx":{"$nin":[5,4]}},{"a_noidx":{"$elemMatch":{"$gt":3}}},{"k_noidx":{"$nin":[9,4]}},{"$or":[{"d_idx":{"$gte":13}},{"a_compound":{"$all":[19,9]}},{"h_idx":{"$exists":true}},{"i_compound":{"$ne":4}}]}]}},{"$sort":{"h_idx":-1}},{"$limit":207},{"$project":{"a_idx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MaxKey, MinKey]"]}}}}},
    "keys" :    207,
    "docs" :    207,
    "sorts":      0,
    "plans":     10,
    "rows" :    207},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$nin":[2,17,14,16,20]}},{"a_compound":{"$nin":[9,17,11,20,16,11,6,19]}}],"h_idx":{"$exists":true}}},{"$project":{"a_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :  90359},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$nin":[6,18,11,19]}},{"a_compound":{"$in":[16,3]}}],"a_compound":{"$lte":3}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[6.0, 6.0]","[11.0, 11.0]","[18.0, 18.0]","[19.0, 19.0]"]}}},
    "keys" :  13880,
    "docs" :  13847,
    "sorts":      0,
    "plans":      6,
    "rows" :   8847},

{">>>pipeline": [{"$match":{"$and":[{"z_idx":{"$gte":5}},{"k_noidx":{"$nin":[6,16]}},{"c_compound":{"$lte":9}},{"a_compound":{"$in":[1,6]}}],"a_compound":{"$elemMatch":{"$exists":true,"$nin":[13,14]}}}},{"$project":{"_id":0,"a_noidx":1,"z_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[5.0, inf]"]}}}},
    "keys" :   4208,
    "docs" :   4208,
    "sorts":      0,
    "plans":      7,
    "rows" :   1594},

{">>>pipeline": [{"$match":{"$or":[{"d_compound":{"$gte":5}},{"k_compound":{"$gt":10}},{"z_compound":{"$in":[12,14]}}],"k_compound":{"$exists":true}}},{"$sort":{"a_idx":1}},{"$limit":69}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}}},
    "keys" :     71,
    "docs" :     71,
    "sorts":      0,
    "plans":     11,
    "rows" :     69},

{">>>pipeline": [{"$match":{"$nor":[{"a_idx":{"$elemMatch":{"$eq":10}}},{"c_compound":{"$in":[4,3,11]}}],"a_compound":{"$exists":true},"a_idx":{"$gte":7},"i_compound":{"$exists":true}}},{"$sort":{"d_idx":-1}},{"$project":{"a_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      8,
    "rows" :  98986},

{">>>pipeline": [{"$match":{"$nor":[{"c_compound":{"$exists":false}},{"a_compound":{"$all":[6,13,3,6,15]}},{"h_noidx":{"$lte":19}}],"a_noidx":{"$elemMatch":{"$exists":true,"$in":[7,8],"$nin":[5,18,18]}},"c_noidx":{"$nin":[16,15]}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_compound_1","indexBounds":{"c_compound":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     12,
    "rows" :  16249},

{">>>pipeline": [{"$match":{"$nor":[{"i_compound":{"$eq":3}},{"a_compound":{"$all":[17,13,3,7]}},{"i_noidx":{"$exists":false}}],"c_noidx":{"$exists":true}}},{"$sort":{"z_idx":-1}},{"$limit":29},{"$project":{"a_noidx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MaxKey, MinKey]"]}}}}},
    "keys" :     29,
    "docs" :     29,
    "sorts":      0,
    "plans":     13,
    "rows" :     29},

{">>>pipeline": [{"$match":{"$and":[{"i_noidx":{"$gte":20}},{"a_idx":{"$exists":true}}],"$or":[{"a_compound":{"$all":[12,5,4]}},{"a_idx":{"$elemMatch":{"$exists":true,"$gte":10}}},{"a_idx":{"$all":[4,6]}}]}},{"$sort":{"a_idx":1,"h_idx":1,"i_idx":1}},{"$project":{"a_idx":1,"i_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts": 1251022,
    "plans":     10,
    "rows" :  99980},

{">>>pipeline": [{"$match":{"a_compound":{"$exists":true},"a_idx":{"$exists":true},"h_noidx":{"$in":[19,8,20]}}},{"$project":{"_id":0,"a_idx":1,"a_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      3,
    "rows" :   3000},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$nin":[6,10]}},{"a_compound":{"$nin":[20,5]}},{"a_compound":{"$all":[3,13]}}],"a_idx":{"$elemMatch":{"$lt":7}},"a_noidx":{"$nin":[11,2,15]}}},{"$sort":{"k_idx":-1}},{"$project":{"a_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     11,
    "rows" :  59350},

{">>>pipeline": [{"$match":{"$and":[{"k_noidx":{"$gt":4}},{"i_compound":{"$gt":14}}],"$nor":[{"a_compound":{"$all":[2,10]}},{"a_compound":{"$nin":[17,16]}}],"z_noidx":{"$ne":3}}},{"$project":{"a_noidx":1,"d_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1_i_compound_1","indexBounds":{"a_compound":["[16.0, 16.0]","[17.0, 17.0]"],"i_compound":["(14.0, inf]"]}}}},
    "keys" :   2001,
    "docs" :   2000,
    "sorts":      0,
    "plans":      8,
    "rows" :   1662},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$elemMatch":{"$nin":[5,14,8]}}},{"a_idx":{"$all":[2,6]}},{"a_compound":{"$elemMatch":{"$nin":[7,5]}}},{"$and":[{"$nor":[{"h_compound":{"$ne":19}},{"d_idx":{"$nin":[11,18,12,1]}},{"i_noidx":{"$ne":3}}]},{"k_compound":{"$gt":7}}]}],"a_noidx":{"$nin":[6,9]},"c_compound":{"$ne":12},"k_idx":{"$exists":true}}},{"$sort":{"z_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     10,
    "rows" :  79209},

{">>>pipeline": [{"$match":{"i_compound":{"$in":[3,16]},"k_compound":{"$lte":13}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_compound_1","indexBounds":{"i_compound":["[3.0, 3.0]","[16.0, 16.0]"]}}},
    "keys" :      4,
    "docs" :      2,
    "sorts":      0,
    "plans":      4,
    "rows" :      1},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$all":[17,20]}},{"i_idx":{"$exists":true}},{"c_compound":{"$in":[19,9]}}],"a_compound":{"$all":[1,9]}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[9.0, 9.0]"]}}},
    "keys" :  10013,
    "docs" :  10013,
    "sorts":      0,
    "plans":     14,
    "rows" :   3759},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$exists":false}},{"a_noidx":{"$exists":false}}],"$or":[{"$and":[{"i_idx":{"$nin":[17,3]}},{"a_idx":{"$exists":false}},{"i_compound":{"$nin":[2,20,6,18]}},{"h_idx":{"$lte":1}},{"z_compound":{"$lt":15}},{"d_compound":{"$exists":false}},{"i_compound":{"$exists":false}}]},{"a_idx":{"$ne":14}}]}},{"$sort":{"k_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     13,
    "rows" :  99000},

{">>>pipeline": [{"$match":{"$and":[{"a_noidx":{"$elemMatch":{"$in":[1,9]}}},{"z_compound":{"$exists":true}},{"a_noidx":{"$elemMatch":{"$in":[7,3]}}},{"$nor":[{"k_compound":{"$exists":false}},{"z_noidx":{"$in":[15,19,15]}},{"$nor":[{"a_compound":{"$elemMatch":{"$exists":false}}},{"a_compound":{"$lt":9}}]},{"c_noidx":{"$exists":false}}]}],"a_idx":{"$nin":[14,2]}}},{"$project":{"_id":0,"a_compound":1,"a_noidx":1,"z_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_compound_1","indexBounds":{"z_compound":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     14,
    "rows" :  11285},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$nin":[8,14]}},{"c_idx":{"$exists":true}},{"d_idx":{"$exists":true}},{"z_idx":{"$nin":[10,15]}},{"a_idx":{"$lt":15}}],"$nor":[{"a_noidx":{"$eq":12}},{"c_compound":{"$gte":6}}]}},{"$sort":{"h_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      9,
    "rows" :  87917},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$nin":[11,17]}},{"a_compound":{"$in":[18,15,10]}}],"k_compound":{"$lte":8}}},{"$limit":171},{"$project":{"a_compound":1,"a_noidx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[-inf, 8.0]"]}}}}},
    "keys" :    171,
    "docs" :    171,
    "sorts":      0,
    "plans":     11,
    "rows" :    171},

{">>>pipeline": [{"$match":{"a_compound":{"$exists":true},"i_compound":{"$gte":20}}},{"$sort":{"i_idx":1,"z_idx":-1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_compound_1","indexBounds":{"i_compound":["[20.0, inf]"]}}}},
    "keys" :  99980,
    "docs" :  99980,
    "sorts": 1251022,
    "plans":      4,
    "rows" :  99980},

{">>>pipeline": [{"$match":{"$or":[{"i_idx":{"$lt":13}},{"$or":[{"a_idx":{"$lte":8}},{"h_idx":{"$exists":false}},{"a_compound":{"$all":[16,5,20]}}]},{"k_idx":{"$nin":[9,3,7]}}],"d_noidx":{"$lt":13},"k_idx":{"$in":[20,3]}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[3.0, 3.0]","[20.0, 20.0]"]}}},
    "keys" :    202,
    "docs" :    200,
    "sorts":      0,
    "plans":      8,
    "rows" :    200},

{">>>pipeline": [{"$match":{"a_compound":{"$elemMatch":{"$gte":12}},"a_idx":{"$gt":6}}},{"$sort":{"a_idx":-1}},{"$limit":40}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}}},
    "keys" :     40,
    "docs" :     40,
    "sorts":      0,
    "plans":      4,
    "rows" :     40},

{">>>pipeline": [{"$match":{"$nor":[{"$nor":[{"$and":[{"a_noidx":{"$elemMatch":{"$ne":7}}},{"a_idx":{"$all":[2,5,3]}},{"k_noidx":{"$nin":[13,3,11,19]}},{"a_noidx":{"$all":[20,6]}}]},{"z_idx":{"$eq":2}},{"$and":[{"a_idx":{"$gt":2}},{"h_compound":{"$nin":[7,18]}},{"d_compound":{"$lt":13}}]},{"a_idx":{"$all":[5,1]}}]},{"z_idx":{"$nin":[1,4]}}],"i_compound":{"$exists":true}}},{"$project":{"a_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[1.0, 1.0]","[4.0, 4.0]"]}}}},
    "keys" :  46329,
    "docs" :  46327,
    "sorts":      0,
    "plans":     13,
    "rows" :  45393},

{">>>pipeline": [{"$match":{"a_compound":{"$elemMatch":{"$lt":20}},"k_compound":{"$nin":[6,20]}}},{"$sort":{"i_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :  99800},

{">>>pipeline": [{"$match":{"$or":[{"z_compound":{"$exists":true}},{"a_compound":{"$elemMatch":{"$lt":18}}}],"i_compound":{"$exists":true}}},{"$sort":{"a_idx":1,"h_idx":1}},{"$limit":1}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"OR","inputStages":[{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_compound_1_z_compound_1","indexBounds":{"i_compound":["[MinKey, MaxKey]"],"z_compound":["[MinKey, MaxKey]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1_i_compound_1","indexBounds":{"a_compound":["[-inf, 18.0)"],"i_compound":["[MinKey, MaxKey]"]}}}]}},
    "keys" : 297941,
    "docs" : 200000,
    "sorts": 100000,
    "plans":      8,
    "rows" :      1},

{">>>pipeline": [{"$match":{"$or":[{"d_idx":{"$exists":true}},{"$or":[{"a_compound":{"$ne":3}},{"a_compound":{"$elemMatch":{"$in":[11,17]}}},{"a_idx":{"$all":[19,13,16]}}]}],"a_compound":{"$elemMatch":{"$gte":14}},"a_noidx":{"$elemMatch":{"$gte":12}},"k_compound":{"$nin":[10,2]}}},{"$sort":{"c_idx":1,"h_idx":-1}},{"$limit":142},{"$project":{"_id":0,"a_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[13.0, 13.0]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1_a_compound_1","indexBounds":{"k_compound":["[MinKey, 2.0)","(2.0, 10.0)","(10.0, MaxKey]"],"a_compound":["[MinKey, 3.0)","(3.0, MaxKey]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1_a_compound_1","indexBounds":{"k_compound":["[MinKey, 2.0)","(2.0, 10.0)","(10.0, MaxKey]"],"a_compound":["[11.0, 11.0]","[17.0, 17.0]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MinKey, MaxKey]"]}}}]}}}},
    "keys" : 548567,
    "docs" : 302804,
    "sorts": 594320,
    "plans":     14,
    "rows" :    142},

{">>>pipeline": [{"$match":{"a_compound":{"$elemMatch":{"$lte":2}},"z_compound":{"$exists":true}}},{"$project":{"k_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[-inf, 2.0]"]}}}},
    "keys" :  93298,
    "docs" :  79322,
    "sorts":      0,
    "plans":      4,
    "rows" :  79322},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$all":[7,16]}},{"d_compound":{"$exists":true}}],"a_compound":{"$elemMatch":{"$eq":11,"$exists":true}}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[11.0, 11.0]"]}}},
    "keys" :   1004,
    "docs" :   1004,
    "sorts":      0,
    "plans":      8,
    "rows" :   1004},

{">>>pipeline": [{"$match":{"a_compound":{"$exists":true},"a_idx":{"$exists":true},"h_noidx":{"$in":[11,10]}}},{"$sort":{"i_idx":-1,"k_idx":1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":  17202,
    "plans":      3,
    "rows" :   2000},

{">>>pipeline": [{"$match":{"$nor":[{"a_idx":{"$exists":false}},{"$nor":[{"a_compound":{"$elemMatch":{"$lt":7,"$nin":[14,3]}}},{"k_compound":{"$nin":[11,17,13]}}]},{"z_compound":{"$ne":3}}],"a_idx":{"$elemMatch":{"$lte":12}},"i_noidx":{"$gte":15}}},{"$sort":{"h_idx":-1}},{"$limit":42}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MaxKey, MinKey]"]}}}},
    "keys" :    232,
    "docs" :    232,
    "sorts":      0,
    "plans":      9,
    "rows" :     42},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$gte":15}},{"$and":[{"a_compound":{"$elemMatch":{"$gte":5,"$nin":[2,12,17,13,15,14]}}},{"z_idx":{"$nin":[20,4]}},{"i_compound":{"$ne":12}}]}]}},{"$sort":{"k_idx":1}},{"$project":{"_id":0,"a_compound":1}}],
    "winningPlan": {"stage":"SUBPLAN","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      7,
    "rows" :  99991},

{">>>pipeline": [{"$match":{"$and":[{"h_compound":{"$gte":5}},{"a_compound":{"$elemMatch":{"$lt":8,"$nin":[10,19]}}}],"$or":[{"a_compound":{"$nin":[18,15]}},{"a_idx":{"$exists":false}},{"a_compound":{"$exists":true}},{"a_idx":{"$all":[4,17]}}]}},{"$project":{"a_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_compound_1","indexBounds":{"h_compound":["[5.0, inf]"]}}}},
    "keys" :  95000,
    "docs" :  95000,
    "sorts":      0,
    "plans":     13,
    "rows" :  94978},

{">>>pipeline": [{"$match":{"$or":[{"d_compound":{"$exists":true}},{"a_compound":{"$all":[1,6,13]}},{"a_compound":{"$elemMatch":{"$exists":false,"$in":[11,6]}}}],"i_idx":{"$eq":6}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[6.0, 6.0]"]}}},
    "keys" :      1,
    "docs" :      1,
    "sorts":      0,
    "plans":     10,
    "rows" :      1},

{">>>pipeline": [{"$match":{"$and":[{"d_compound":{"$lte":5}},{"a_compound":{"$nin":[14,1]}}],"$or":[{"k_compound":{"$exists":true}},{"a_idx":{"$exists":false}}],"k_idx":{"$nin":[9,20,8]}}},{"$sort":{"h_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      9,
    "rows" :  30118},

{">>>pipeline": [{"$match":{"a_compound":{"$nin":[8,5,16,3,7]},"a_idx":{"$elemMatch":{"$lte":19}}}},{"$sort":{"k_idx":1}},{"$project":{"_id":0,"a_noidx":1,"i_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      4,
    "rows" :  46685},

{">>>pipeline": [{"$match":{"$and":[{"$and":[{"c_idx":{"$lte":15}},{"a_idx":{"$nin":[8,3]}},{"$or":[{"h_compound":{"$exists":false}},{"z_compound":{"$exists":true}}]}]},{"a_idx":{"$elemMatch":{"$exists":true}}}],"a_compound":{"$nin":[14,8,6,1]}}},{"$sort":{"d_idx":1,"k_idx":1}},{"$project":{"_id":0,"h_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts": 284574,
    "plans":      7,
    "rows" :  25528},

{">>>pipeline": [{"$match":{"$and":[{"$or":[{"a_compound":{"$lt":18}},{"a_compound":{"$elemMatch":{"$exists":false,"$nin":[4,11,2]}}},{"a_compound":{"$eq":19}}]},{"a_compound":{"$eq":4}}],"i_noidx":{"$gte":6}}},{"$project":{"a_compound":1,"a_noidx":1,"i_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[4.0, 4.0]"]}}}},
    "keys" :  17094,
    "docs" :  17094,
    "sorts":      0,
    "plans":     10,
    "rows" :  17093},

{">>>pipeline": [{"$match":{"$and":[{"$or":[{"a_compound":{"$all":[20,6,17,5]}},{"z_compound":{"$lte":14}}]},{"z_idx":{"$lte":10}}],"c_compound":{"$in":[1,3,2]}}},{"$sort":{"h_idx":1,"i_idx":-1}},{"$limit":90},{"$project":{"_id":0,"a_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[20.0, 20.0]"]}}},{"stage":"IXSCAN","indexName":"z_compound_1","indexBounds":{"z_compound":["[-inf, 14.0]"]}}]}}}},
    "keys" : 101000,
    "docs" : 101000,
    "sorts": 549959,
    "plans":     12,
    "rows" :     90},

{">>>pipeline": [{"$match":{"$or":[{"k_idx":{"$nin":[11,18]}},{"z_compound":{"$nin":[12,1]}},{"a_compound":{"$exists":false}},{"a_compound":{"$elemMatch":{"$exists":false}}}],"a_compound":{"$elemMatch":{"$gt":2}}}},{"$sort":{"k_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     11,
    "rows" :  99920},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[5,4,2,12,8]}},{"a_noidx":{"$exists":false}},{"k_idx":{"$in":[14,17,19,11]}}],"a_compound":{"$gte":15}}},{"$sort":{"a_idx":1,"i_idx":-1,"z_idx":-1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MinKey, 11.0)","(11.0, 14.0)","(14.0, 17.0)","(17.0, 19.0)","(19.0, MaxKey]"]}}}},
    "keys" :  99604,
    "docs" :  99600,
    "sorts": 1245713,
    "plans":     13,
    "rows" :  99587},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[17,1,10]}},{"a_noidx":{"$nin":[13,3]}}],"a_noidx":{"$elemMatch":{"$exists":true,"$lt":9}}}},{"$sort":{"a_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      9,
    "rows" :  25786},

{">>>pipeline": [{"$match":{"c_compound":{"$in":[16,1,5]},"i_idx":{"$exists":true}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_compound_1","indexBounds":{"c_compound":["[1.0, 1.0]","[5.0, 5.0]","[16.0, 16.0]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      3,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$exists":false}},{"$nor":[{"a_idx":{"$all":[8,4,7]}},{"d_compound":{"$exists":false}},{"a_compound":{"$elemMatch":{"$exists":false,"$nin":[7,8]}}},{"a_idx":{"$all":[10,2,9]}},{"a_compound":{"$all":[9,11]}},{"a_idx":{"$lte":20}}]}],"a_idx":{"$gte":3}}},{"$sort":{"a_idx":1,"c_idx":1}},{"$limit":36}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[MinKey, MaxKey]"]}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts": 458347,
    "plans":     12,
    "rows" :     36},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$elemMatch":{"$in":[7,6,14]}}},{"a_idx":{"$nin":[6,12,16,1]}},{"a_idx":{"$elemMatch":{"$in":[5,3,4,13]}}},{"a_idx":{"$all":[14,8,8,19,18]}}],"h_noidx":{"$gte":9}}},{"$sort":{"c_idx":-1}},{"$limit":215},{"$project":{"a_compound":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MaxKey, MinKey]"]}}}}},
    "keys" :    305,
    "docs" :    305,
    "sorts":      0,
    "plans":      6,
    "rows" :    215},

{">>>pipeline": [{"$match":{"$nor":[{"d_compound":{"$nin":[9,20]}},{"a_compound":{"$in":[18,12]}}],"a_compound":{"$ne":19}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_compound_1","indexBounds":{"d_compound":["[9.0, 9.0]","[20.0, 20.0]"]}}},
    "keys" :  10000,
    "docs" :  10000,
    "sorts":      0,
    "plans":      6,
    "rows" :   9000},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$gt":10}},{"a_compound":{"$all":[9,7]}},{"h_compound":{"$exists":false}}],"c_idx":{"$exists":true}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      6,
    "rows" :  99989},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$all":[12,16]}},{"a_idx":{"$exists":true}},{"k_compound":{"$in":[13,17,2]}}],"k_compound":{"$in":[15,3,7,19]}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[3.0, 3.0]","[7.0, 7.0]","[15.0, 15.0]","[19.0, 19.0]"]}}},
    "keys" :    404,
    "docs" :    400,
    "sorts":      0,
    "plans":     11,
    "rows" :    400},

{">>>pipeline": [{"$match":{"d_compound":{"$nin":[7,19,10]},"h_idx":{"$gte":8}}},{"$sort":{"a_idx":1}},{"$project":{"a_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      4,
    "rows" :  83000},

{">>>pipeline": [{"$match":{"a_idx":{"$in":[15,15]},"i_compound":{"$ne":14}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[15.0, 15.0]"]}}},
    "keys" :   1000,
    "docs" :   1000,
    "sorts":      0,
    "plans":      3,
    "rows" :   1000},

{">>>pipeline": [{"$match":{"$and":[{"$or":[{"a_idx":{"$all":[16,3,13,6]}},{"a_compound":{"$lt":16}}]},{"h_compound":{"$ne":5}},{"k_idx":{"$in":[17,8]}}],"$nor":[{"$nor":[{"$nor":[{"a_idx":{"$elemMatch":{"$nin":[20,5,1,18]}}},{"i_compound":{"$in":[2,15,18]}}]},{"i_idx":{"$in":[7,17]}},{"h_compound":{"$exists":false}}]},{"z_noidx":{"$in":[7,6]}}]}},{"$sort":{"a_idx":-1}},{"$limit":95}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[8.0, 8.0]","[17.0, 17.0]"]}}}},
    "keys" :    202,
    "docs" :    200,
    "sorts":      1,
    "plans":     13,
    "rows" :      1},

{">>>pipeline": [{"$match":{"a_compound":{"$lt":12},"a_noidx":{"$lt":2},"k_idx":{"$exists":true}}},{"$sort":{"a_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      4,
    "rows" :  50725},

{">>>pipeline": [{"$match":{"$and":[{"h_noidx":{"$gte":15}},{"$nor":[{"a_compound":{"$all":[17,4]}},{"i_compound":{"$eq":4}},{"k_compound":{"$in":[20,5,10]}}]}]}},{"$sort":{"z_idx":-1}},{"$skip":57}],
    "winningPlan": {"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     14,
    "rows" :  84774},

{">>>pipeline": [{"$match":{"$or":[{"$or":[{"a_idx":{"$elemMatch":{"$eq":10}}},{"z_idx":{"$exists":true}},{"$and":[{"i_idx":{"$in":[11,12,4]}},{"a_idx":{"$all":[4,20,1,20,5]}},{"$and":[{"a_idx":{"$gte":16}},{"i_noidx":{"$nin":[8,16]}},{"i_noidx":{"$in":[12,14]}},{"h_noidx":{"$ne":17}}]}]}]},{"a_compound":{"$elemMatch":{"$in":[1,14]}}}],"a_compound":{"$exists":true}}},{"$sort":{"h_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     12,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"a_compound":{"$elemMatch":{"$gte":14,"$in":[3,16],"$nin":[18,9]}},"a_idx":{"$elemMatch":{"$in":[8,20,16],"$nin":[1,19]}},"z_compound":{"$nin":[4,5,18]}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[16.0, 16.0]"]}}},
    "keys" :   1000,
    "docs" :   1000,
    "sorts":      0,
    "plans":      5,
    "rows" :    890},

{">>>pipeline": [{"$match":{"$nor":[{"a_idx":{"$all":[19,15]}},{"i_compound":{"$in":[14,19,10]}}],"a_idx":{"$elemMatch":{"$nin":[5,5,1,5]}}}},{"$sort":{"c_idx":-1}},{"$limit":155}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MaxKey, MinKey]"]}}}},
    "keys" :    155,
    "docs" :    155,
    "sorts":      0,
    "plans":      5,
    "rows" :    155},

{">>>pipeline": [{"$match":{"$or":[{"h_idx":{"$gt":16}},{"i_compound":{"$gt":18}}],"a_compound":{"$nin":[13,11,10]},"c_compound":{"$in":[1,2,19,2,9]},"k_idx":{"$gt":3}}},{"$sort":{"i_idx":1}},{"$project":{"_id":0,"c_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      9,
    "rows" :  96579},

{">>>pipeline": [{"$match":{"$and":[{"i_noidx":{"$exists":true}},{"a_noidx":{"$exists":true}},{"a_compound":{"$lte":3}}],"k_compound":{"$exists":true}}},{"$sort":{"a_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :  92730},

{">>>pipeline": [{"$match":{"$nor":[{"i_compound":{"$lt":1}},{"a_compound":{"$all":[9,6]}},{"a_compound":{"$gte":5}}],"a_noidx":{"$nin":[8,13,19,11]}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_compound_1","indexBounds":{"i_compound":["[MinKey, -inf)","[1.0, MaxKey]"]}}},
    "keys" : 100000,
    "docs" :  99999,
    "sorts":      0,
    "plans":      8,
    "rows" :      4},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$all":[16,13]}},{"a_compound":{"$elemMatch":{"$lte":20}}}],"h_noidx":{"$lt":1}}},{"$sort":{"i_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      7,
    "rows" :   1000},

{">>>pipeline": [{"$match":{"a_compound":{"$elemMatch":{"$exists":true,"$gte":3}},"h_compound":{"$exists":true}}},{"$project":{"_id":0,"h_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[3.0, inf]"]}}}},
    "keys" : 375643,
    "docs" :  99999,
    "sorts":      0,
    "plans":      3,
    "rows" :  99999},

{">>>pipeline": [{"$match":{"a_compound":{"$gt":17},"h_compound":{"$nin":[17,19]},"i_compound":{"$ne":13}}},{"$sort":{"i_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      6,
    "rows" :  97983},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$lt":8}},{"a_compound":{"$all":[11,12,11,20]}}],"a_compound":{"$in":[4,4,14]},"a_noidx":{"$gte":18}}},{"$project":{"_id":0,"a_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[4.0, 4.0]","[14.0, 14.0]"]}}}},
    "keys" :  18096,
    "docs" :  17094,
    "sorts":      0,
    "plans":     11,
    "rows" :  17089},

{">>>pipeline": [{"$match":{"$nor":[{"a_idx":{"$elemMatch":{"$eq":20,"$in":[8,17,14,15,2],"$lte":19}}},{"a_compound":{"$all":[8,17,18]}}],"a_compound":{"$elemMatch":{"$lte":8}}}},{"$limit":32}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[-inf, 8.0]"]}}}},
    "keys" :     32,
    "docs" :     32,
    "sorts":      0,
    "plans":     10,
    "rows" :     32},

{">>>pipeline": [{"$match":{"a_compound":{"$in":[17,15]},"z_compound":{"$ne":5}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[15.0, 15.0]","[17.0, 17.0]"]}}},
    "keys" :   2002,
    "docs" :   2000,
    "sorts":      0,
    "plans":      4,
    "rows" :   1936},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[18,1,8]}},{"k_noidx":{"$eq":5}}],"a_noidx":{"$exists":true}}},{"$project":{"_id":0,"z_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[MinKey, MaxKey]"]}}}}},
    "keys" : 468941,
    "docs" : 199603,
    "sorts":      0,
    "plans":      8,
    "rows" :  99503},

{">>>pipeline": [{"$match":{"$or":[{"i_compound":{"$ne":14}},{"k_compound":{"$exists":true}}],"a_idx":{"$ne":10}}},{"$sort":{"a_idx":-1}},{"$project":{"_id":0,"a_noidx":1,"d_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      6,
    "rows" :  98993},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$exists":false}},{"$or":[{"a_noidx":{"$ne":19}},{"a_noidx":{"$elemMatch":{"$in":[1,14]}}},{"a_noidx":{"$eq":16}},{"a_compound":{"$all":[6,15,19]}}]}],"c_compound":{"$exists":true},"i_compound":{"$exists":true}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_compound_1","indexBounds":{"i_compound":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     14,
    "rows" :    604},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$gte":20}},{"c_compound":{"$gte":6}}],"a_compound":{"$elemMatch":{"$gt":8}},"a_idx":{"$gte":14}}},{"$sort":{"h_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      6,
    "rows" :  99980},

{">>>pipeline": [{"$match":{"$nor":[{"d_noidx":{"$gte":12}},{"$nor":[{"a_idx":{"$eq":3}},{"a_compound":{"$elemMatch":{"$nin":[20,13,9]}}},{"a_idx":{"$all":[18,11,11]}},{"$nor":[{"a_idx":{"$elemMatch":{"$eq":5,"$in":[5,14,12]}}},{"k_compound":{"$exists":false}}]}]}],"c_compound":{"$nin":[8,6,17]},"c_noidx":{"$exists":true}}},{"$sort":{"z_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     13,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$or":[{"d_idx":{"$lte":17}},{"a_compound":{"$all":[7,11]}}],"k_noidx":{"$nin":[3,1,11,7]}}},{"$sort":{"a_idx":1}},{"$limit":252},{"$project":{"c_compound":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" :    252,
    "docs" :    252,
    "sorts":      0,
    "plans":      6,
    "rows" :    252},

{">>>pipeline": [{"$match":{"$and":[{"c_idx":{"$exists":true}},{"$or":[{"a_compound":{"$gt":14}},{"z_compound":{"$lte":5}},{"a_idx":{"$eq":12}},{"a_idx":{"$elemMatch":{"$exists":true}}},{"a_idx":{"$lte":16}},{"d_compound":{"$exists":true}}]}],"z_noidx":{"$lt":12}}},{"$sort":{"a_idx":-1,"i_idx":1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"IXSCAN","indexName":"z_compound_1","indexBounds":{"z_compound":["[-inf, 5.0]"]}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_compound_1","indexBounds":{"d_compound":["[MinKey, MaxKey]"]}}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}},{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["(14.0, inf]"]}}]}}},
    "keys" : 941570,
    "docs" : 300000,
    "sorts": 1251293,
    "plans":      9,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[19,3,9]}},{"k_noidx":{"$in":[6,11,2,6]}}],"a_idx":{"$lte":8}}},{"$sort":{"a_idx":1}},{"$limit":200}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}}},
    "keys" :    200,
    "docs" :    200,
    "sorts":      0,
    "plans":     10,
    "rows" :    200},

{">>>pipeline": [{"$match":{"$nor":[{"a_noidx":{"$elemMatch":{"$eq":16,"$exists":true,"$in":[1,4,18]}}},{"a_compound":{"$all":[14,13,8]}}],"a_compound":{"$gt":19}}},{"$sort":{"k_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     11,
    "rows" :  99980},

{">>>pipeline": [{"$match":{"a_compound":{"$nin":[18,1]},"a_noidx":{"$elemMatch":{"$nin":[1,16]}},"c_compound":{"$exists":true},"z_compound":{"$exists":true}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[MinKey, 1.0)","(1.0, 18.0)","(18.0, MaxKey]"]}}},
    "keys" : 423437,
    "docs" : 100000,
    "sorts":      0,
    "plans":      6,
    "rows" :  54891},

{">>>pipeline": [{"$match":{"$or":[{"$or":[{"a_idx":{"$nin":[12,4,9]}},{"a_compound":{"$in":[9,15]}},{"a_compound":{"$all":[5,14]}}]},{"a_idx":{"$elemMatch":{"$exists":true,"$in":[14,19]}}}],"c_idx":{"$ne":5}}},{"$sort":{"d_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     11,
    "rows" :  83825},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$elemMatch":{"$exists":false}}},{"a_compound":{"$all":[17,5,16,3]}},{"a_noidx":{"$elemMatch":{"$exists":false}}},{"a_compound":{"$exists":false}},{"d_noidx":{"$in":[17,11,18]}}],"d_noidx":{"$exists":true}}},{"$sort":{"i_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     13,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$exists":false}},{"a_idx":{"$exists":false}}],"a_noidx":{"$in":[9,8,18,9]}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      3,
    "rows" :  20085},

{">>>pipeline": [{"$match":{"$or":[{"z_idx":{"$lte":20}},{"$nor":[{"a_idx":{"$exists":false}},{"a_compound":{"$elemMatch":{"$nin":[11,17,8]}}},{"$or":[{"i_idx":{"$exists":true}},{"z_idx":{"$exists":false}}]},{"a_idx":{"$lte":18}}]}],"a_compound":{"$elemMatch":{"$lte":2,"$nin":[8,6,2]}}}},{"$sort":{"i_idx":-1,"z_idx":-1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}},{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[-inf, 20.0]"]}}]}}},
    "keys" : 568941,
    "docs" : 200000,
    "sorts": 600288,
    "plans":      6,
    "rows" :  50725},

{">>>pipeline": [{"$match":{"$nor":[{"k_noidx":{"$lt":9}},{"a_compound":{"$all":[6,2,7]}},{"h_noidx":{"$lte":2}}],"a_idx":{"$nin":[13,7]},"c_noidx":{"$nin":[11,18,7]}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, 7.0)","(7.0, 13.0)","(13.0, MaxKey]"]}}},
    "keys" : 457686,
    "docs" : 100000,
    "sorts":      0,
    "plans":      9,
    "rows" :  85259},

{">>>pipeline": [{"$match":{"$nor":[{"z_idx":{"$in":[7,11,12,18,5]}},{"a_compound":{"$all":[4,3,1]}}],"i_compound":{"$nin":[20,8,1]}}},{"$sort":{"i_idx":1}},{"$project":{"d_noidx":1,"z_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     12,
    "rows" :  96872},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[2,2,5,14]}},{"a_noidx":{"$in":[20,9,16]}},{"a_idx":{"$ne":4}}],"d_compound":{"$exists":true}}},{"$sort":{"a_idx":-1}},{"$limit":234}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}}},
    "keys" :   1506,
    "docs" :   1506,
    "sorts":      0,
    "plans":     12,
    "rows" :    234},

{">>>pipeline": [{"$match":{"$and":[{"$nor":[{"d_compound":{"$in":[2,4,8,18,8]}},{"d_idx":{"$in":[14,4,5]}}]},{"c_idx":{"$in":[7,1,10,11]}}]}},{"$sort":{"h_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :  60000},

{">>>pipeline": [{"$match":{"$and":[{"$or":[{"a_compound":{"$all":[16,11,7]}},{"a_compound":{"$in":[1,12,2,13]}},{"a_idx":{"$all":[4,6,2,13,7,19]}},{"i_compound":{"$ne":7}}]},{"d_idx":{"$exists":true}}],"a_compound":{"$gt":6}}},{"$sort":{"k_idx":-1}},{"$project":{"a_compound":1,"a_idx":1,"k_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     13,
    "rows" :  99992},

{">>>pipeline": [{"$match":{"$nor":[{"$and":[{"a_compound":{"$exists":false}},{"a_compound":{"$lt":10}},{"h_compound":{"$exists":true}},{"h_idx":{"$gt":13}}]},{"a_idx":{"$in":[12,15]}}],"k_compound":{"$lte":13}}},{"$project":{"a_compound":1,"h_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[-inf, 13.0]"]}}}},
    "keys" :   1400,
    "docs" :   1400,
    "sorts":      0,
    "plans":     12,
    "rows" :   1300},

{">>>pipeline": [{"$match":{"$or":[{"k_compound":{"$lte":4}},{"a_compound":{"$elemMatch":{"$exists":false,"$gt":11}}},{"$or":[{"a_idx":{"$all":[8,17,14]}},{"c_compound":{"$exists":false}},{"a_idx":{"$exists":true}},{"a_idx":{"$in":[5,2,7]}}]}],"i_compound":{"$in":[15,12,9,2]}}},{"$project":{"_id":0,"a_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_compound_1","indexBounds":{"i_compound":["[2.0, 2.0]","[9.0, 9.0]","[12.0, 12.0]","[15.0, 15.0]"]}}}},
    "keys" :      8,
    "docs" :      4,
    "sorts":      0,
    "plans":     12,
    "rows" :      4},

{">>>pipeline": [{"$match":{"a_compound":{"$elemMatch":{"$nin":[6,4]}},"d_compound":{"$gt":2}}},{"$sort":{"c_idx":-1}},{"$project":{"a_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :  70000},

{">>>pipeline": [{"$match":{"$and":[{"d_idx":{"$lte":13}},{"i_compound":{"$nin":[17,19,1]}},{"d_compound":{"$lte":6}}]}},{"$sort":{"a_idx":1}},{"$project":{"d_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      6,
    "rows" :  69999},

{">>>pipeline": [{"$match":{"$and":[{"$nor":[{"a_compound":{"$all":[9,18,3]}},{"a_idx":{"$eq":9}}]},{"z_noidx":{"$nin":[17,17]}},{"z_idx":{"$gte":6}}],"k_noidx":{"$exists":true}}},{"$sort":{"h_idx":1,"z_idx":-1}},{"$limit":18}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[6.0, inf]"]}}}},
    "keys" :   1371,
    "docs" :   1371,
    "sorts":   4754,
    "plans":     10,
    "rows" :     18},

{">>>pipeline": [{"$match":{"$or":[{"c_idx":{"$exists":true}},{"k_compound":{"$in":[1,11]}}],"d_compound":{"$eq":7}}},{"$project":{"_id":0,"a_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_compound_1","indexBounds":{"d_compound":["[7.0, 7.0]"]}}}},
    "keys" :  10000,
    "docs" :  10000,
    "sorts":      0,
    "plans":      5,
    "rows" :  10000},

{">>>pipeline": [{"$match":{"a_compound":{"$in":[6,14,3,2]},"k_compound":{"$exists":true}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[2.0, 2.0]","[3.0, 3.0]","[6.0, 6.0]","[14.0, 14.0]"]}}},
    "keys" :  76454,
    "docs" :  65811,
    "sorts":      0,
    "plans":      4,
    "rows" :  65811},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[10,1]}},{"a_noidx":{"$in":[12,10]}},{"a_compound":{"$all":[20,10]}}],"c_idx":{"$nin":[5,19,16]}}},{"$sort":{"d_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      9,
    "rows" :  97993},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$elemMatch":{"$nin":[7,11]}}},{"a_compound":{"$elemMatch":{"$eq":13,"$exists":true,"$gt":3,"$gte":17}}},{"a_compound":{"$exists":false}}],"i_idx":{"$lte":10}}},{"$sort":{"i_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[-inf, 10.0]"]}}},
    "keys" :     11,
    "docs" :     11,
    "sorts":      0,
    "plans":      9,
    "rows" :     11},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$all":[10,8]}},{"k_compound":{"$gt":12}}],"i_noidx":{"$ne":5}}},{"$sort":{"z_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     10,
    "rows" :  98700},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$all":[17,14]}},{"c_compound":{"$nin":[4,5,13]}},{"c_idx":{"$nin":[19,6]}}],"a_compound":{"$all":[7,2,7]}}},{"$sort":{"a_idx":1}},{"$limit":131},{"$project":{"_id":0,"i_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[7.0, 7.0]"]}}}}},
    "keys" :  10257,
    "docs" :  10257,
    "sorts":  19206,
    "plans":     12,
    "rows" :    131},

{">>>pipeline": [{"$match":{"$nor":[{"i_compound":{"$in":[7,9]}},{"a_compound":{"$all":[7,14,16,9]}},{"d_compound":{"$nin":[15,3,17]}}],"a_noidx":{"$elemMatch":{"$exists":true}}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_compound_1","indexBounds":{"d_compound":["[3.0, 3.0]","[15.0, 15.0]","[17.0, 17.0]"]}}},
    "keys" :  10001,
    "docs" :  10000,
    "sorts":      0,
    "plans":     14,
    "rows" :  10000},

{">>>pipeline": [{"$match":{"$nor":[{"i_compound":{"$lt":10}},{"i_compound":{"$in":[11,5,6]}}],"a_idx":{"$exists":true},"a_noidx":{"$exists":true}}},{"$sort":{"i_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      4,
    "rows" :  99989},

{">>>pipeline": [{"$match":{"a_compound":{"$in":[13,3,10]},"a_idx":{"$lt":9},"d_compound":{"$in":[7,10]}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_compound_1_k_compound_1","indexBounds":{"d_compound":["[7.0, 7.0]","[10.0, 10.0]"],"k_compound":["[MinKey, MaxKey]"]}}},
    "keys" :  10001,
    "docs" :  10000,
    "sorts":      0,
    "plans":      5,
    "rows" :   1701},

{">>>pipeline": [{"$match":{"$or":[{"c_compound":{"$nin":[7,14]}},{"c_compound":{"$lt":2}},{"a_idx":{"$all":[1,9]}}],"k_compound":{"$gte":8}}},{"$skip":80}],
    "winningPlan": {"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[8.0, inf]"]}}}},
    "keys" :  99200,
    "docs" :  99200,
    "sorts":      0,
    "plans":     12,
    "rows" :  99120},

{">>>pipeline": [{"$match":{"$nor":[{"k_idx":{"$exists":false}},{"a_compound":{"$gt":17}},{"$nor":[{"$and":[{"c_compound":{"$exists":true}},{"a_compound":{"$all":[15,14,11]}},{"a_idx":{"$nin":[18,13]}},{"a_idx":{"$nin":[14,9]}}]},{"a_idx":{"$lt":3}},{"d_compound":{"$nin":[12,19,16,19]}}]}],"a_compound":{"$eq":3}}},{"$sort":{"a_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":     16,
    "rows" :      6},

{">>>pipeline": [{"$match":{"$nor":[{"a_idx":{"$in":[11,11,12]}},{"a_idx":{"$in":[9,12]}},{"a_compound":{"$all":[2,14,16,10]}},{"k_compound":{"$nin":[1,20]}}],"a_noidx":{"$exists":true}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[1.0, 1.0]","[20.0, 20.0]"]}}},
    "keys" :    202,
    "docs" :    200,
    "sorts":      0,
    "plans":     14,
    "rows" :    200},

{">>>pipeline": [{"$match":{"a_compound":{"$in":[15,5,1,2]}}},{"$sort":{"d_idx":-1}},{"$limit":243},{"$project":{"a_idx":1,"h_noidx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MaxKey, MinKey]"]}}}}},
    "keys" :    330,
    "docs" :    330,
    "sorts":      0,
    "plans":      3,
    "rows" :    243},

{">>>pipeline": [{"$match":{"a_compound":{"$nin":[8,2]},"a_idx":{"$exists":true}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[MinKey, 2.0)","(2.0, 8.0)","(8.0, MaxKey]"]}}},
    "keys" : 420070,
    "docs" : 100000,
    "sorts":      0,
    "plans":      3,
    "rows" :  54272},

{">>>pipeline": [{"$match":{"$and":[{"c_compound":{"$nin":[16,7,2]}},{"i_idx":{"$lte":9}}],"a_compound":{"$elemMatch":{"$nin":[6,17]}}}},{"$project":{"a_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[-inf, 9.0]"]}}}},
    "keys" :     10,
    "docs" :     10,
    "sorts":      0,
    "plans":      5,
    "rows" :     10},

{">>>pipeline": [{"$match":{"$or":[{"c_compound":{"$in":[8,15]}},{"a_compound":{"$elemMatch":{"$nin":[13,16]}}},{"h_idx":{"$nin":[9,1]}}],"a_noidx":{"$elemMatch":{"$in":[16,8,4]}}}},{"$sort":{"i_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :  27255},

{">>>pipeline": [{"$match":{"a_noidx":{"$all":[1,8]},"h_compound":{"$exists":true},"i_compound":{"$exists":true}}},{"$sort":{"a_idx":-1}},{"$project":{"_id":0,"a_idx":1,"z_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      4,
    "rows" :   3886},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$lte":14}},{"a_compound":{"$lte":9}},{"$nor":[{"$nor":[{"a_compound":{"$elemMatch":{"$in":[10,19,17],"$nin":[8,8,2,5]}}},{"$nor":[{"i_compound":{"$eq":4}},{"k_noidx":{"$exists":false}},{"a_noidx":{"$exists":false}},{"c_noidx":{"$lt":5}},{"a_noidx":{"$exists":false}}]}]},{"k_noidx":{"$nin":[5,8,11]}}]}],"a_noidx":{"$in":[13,13,15,2]},"h_noidx":{"$nin":[14,10,3]}}},{"$sort":{"h_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      9,
    "rows" :  39181},

{">>>pipeline": [{"$match":{"$or":[{"z_compound":{"$lt":14}},{"$and":[{"a_noidx":{"$all":[13,5]}},{"$or":[{"a_compound":{"$ne":2}},{"a_compound":{"$gt":11}},{"a_compound":{"$elemMatch":{"$ne":19}}}]}]},{"a_compound":{"$elemMatch":{"$gt":4}}}],"a_idx":{"$exists":true}}},{"$sort":{"a_idx":1,"h_idx":1}},{"$limit":16},{"$project":{"a_noidx":1,"i_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts": 377259,
    "plans":     11,
    "rows" :     16},

{">>>pipeline": [{"$match":{"$nor":[{"a_noidx":{"$all":[11,2]}},{"h_idx":{"$lte":17}}],"a_compound":{"$elemMatch":{"$lt":16}},"a_idx":{"$elemMatch":{"$gt":18}}}},{"$sort":{"z_idx":-1}},{"$skip":22}],
    "winningPlan": {"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :  81976},

{">>>pipeline": [{"$match":{"$and":[{"c_compound":{"$lte":7}},{"a_idx":{"$ne":5}},{"a_noidx":{"$elemMatch":{"$lt":20}}}],"$or":[{"c_compound":{"$nin":[8,9]}},{"a_compound":{"$gte":18}},{"z_compound":{"$in":[10,15]}}],"a_idx":{"$lt":8}}},{"$sort":{"c_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     13,
    "rows" :  87450},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$elemMatch":{"$lte":1,"$nin":[11,8,9,14,8]}}},{"a_compound":{"$exists":true}},{"a_noidx":{"$in":[2,17,16]}},{"k_compound":{"$in":[20,16,5]}}],"a_idx":{"$lt":2}}},{"$sort":{"k_idx":-1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1_a_compound_1","indexBounds":{"k_compound":["[5.0, 5.0]","[16.0, 16.0]","[20.0, 20.0]"],"a_compound":["[-inf, 1.0]"]}}}},
    "keys" :    228,
    "docs" :    181,
    "sorts":    386,
    "plans":      8,
    "rows" :     73},

{">>>pipeline": [{"$match":{"$nor":[{"i_compound":{"$eq":8}},{"z_idx":{"$gte":7}},{"k_idx":{"$lt":20}}],"a_noidx":{"$elemMatch":{"$gte":19}}}},{"$sort":{"a_idx":-1}},{"$project":{"a_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :  97612},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$ne":14}},{"a_compound":{"$exists":true}},{"c_noidx":{"$in":[1,3]}}]}},{"$sort":{"c_idx":-1}},{"$project":{"_id":0,"a_compound":1,"a_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :  99000},

{">>>pipeline": [{"$match":{"$nor":[{"$nor":[{"a_compound":{"$elemMatch":{"$exists":false,"$in":[10,11]}}},{"a_idx":{"$lte":20}},{"a_idx":{"$all":[12,3]}}]},{"k_compound":{"$ne":20}},{"h_noidx":{"$lt":9}}],"i_compound":{"$ne":8}}},{"$project":{"_id":0,"a_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[20.0, 20.0]"]}}}},
    "keys" :    100,
    "docs" :    100,
    "sorts":      0,
    "plans":     13,
    "rows" :    100},

{">>>pipeline": [{"$match":{"a_compound":{"$in":[20,1]},"z_compound":{"$in":[1,13,14]}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_compound_1","indexBounds":{"z_compound":["[1.0, 1.0]","[13.0, 13.0]","[14.0, 14.0]"]}}},
    "keys" :  38425,
    "docs" :  38424,
    "sorts":      0,
    "plans":      4,
    "rows" :  38424},

{">>>pipeline": [{"$match":{"$or":[{"k_idx":{"$lt":16}},{"a_compound":{"$ne":8}},{"$or":[{"a_compound":{"$lte":18}},{"a_idx":{"$all":[4,20]}}]}],"a_compound":{"$elemMatch":{"$exists":true}}}},{"$sort":{"a_idx":1,"c_idx":1,"h_idx":-1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[20.0, 20.0]"]}}},{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[-inf, 16.0)"]}},{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[-inf, 18.0]"]}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1_i_compound_1","indexBounds":{"a_compound":["[MinKey, 8.0)","(8.0, MaxKey]"],"i_compound":["[MinKey, MaxKey]"]}}}]}}},
    "keys" : 660402,
    "docs" : 201000,
    "sorts": 1251293,
    "plans":     12,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$exists":true}},{"a_compound":{"$eq":14}},{"d_compound":{"$exists":false}}],"a_idx":{"$exists":true},"i_idx":{"$exists":true}}},{"$sort":{"d_idx":-1}},{"$skip":67}],
    "winningPlan": {"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     11,
    "rows" :  99933},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[10,9,5,4]}},{"i_noidx":{"$exists":false}},{"d_noidx":{"$in":[11,8,8]}}],"k_idx":{"$nin":[11,4]},"z_compound":{"$nin":[13,5,7,20]}}},{"$sort":{"h_idx":-1}},{"$limit":48}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MaxKey, MinKey]"]}}}},
    "keys" :     49,
    "docs" :     49,
    "sorts":      0,
    "plans":     14,
    "rows" :     48},

{">>>pipeline": [{"$match":{"$or":[{"$and":[{"a_compound":{"$elemMatch":{"$exists":true}}},{"i_noidx":{"$ne":1}},{"a_noidx":{"$gte":4}},{"$and":[{"$and":[{"z_noidx":{"$exists":false}},{"h_compound":{"$nin":[6,3]}}]},{"c_compound":{"$eq":1}},{"a_idx":{"$all":[12,5,20]}}]},{"a_idx":{"$all":[14,19]}}]},{"c_idx":{"$exists":true}}],"a_idx":{"$lte":16},"a_noidx":{"$elemMatch":{"$nin":[13,8]}}}},{"$limit":37},{"$project":{"a_noidx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[-inf, 16.0]"]}}}}},
    "keys" :     37,
    "docs" :     37,
    "sorts":      0,
    "plans":     11,
    "rows" :     37},

{">>>pipeline": [{"$match":{"$or":[{"d_compound":{"$exists":true}},{"d_compound":{"$lte":14}}]}},{"$sort":{"z_idx":-1}},{"$project":{"_id":0,"a_compound":1}}],
    "winningPlan": {"stage":"SUBPLAN","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MaxKey, MinKey]"]}}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$all":[7,6,19]}},{"a_compound":{"$elemMatch":{"$eq":8,"$gt":18}}},{"d_compound":{"$lt":11}}],"a_compound":{"$lte":9},"a_idx":{"$elemMatch":{"$eq":14,"$gt":11}}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[14.0, 14.0]"]}}},
    "keys" :   1000,
    "docs" :   1000,
    "sorts":      0,
    "plans":     12,
    "rows" :   1000},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$lt":1}},{"a_compound":{"$all":[19,8]}}],"h_idx":{"$gte":19}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[19.0, inf]"]}}},
    "keys" :  81000,
    "docs" :  81000,
    "sorts":      0,
    "plans":      7,
    "rows" :  73000},

{">>>pipeline": [{"$match":{"$nor":[{"a_noidx":{"$nin":[5,3,7]}},{"h_idx":{"$eq":17}}],"$or":[{"$or":[{"a_compound":{"$all":[4,17]}},{"a_idx":{"$gt":1}}]},{"$and":[{"a_idx":{"$eq":9}},{"a_idx":{"$all":[14,5]}}]},{"c_idx":{"$exists":false}}]}},{"$sort":{"h_idx":-1}},{"$project":{"_id":0,"a_compound":1,"a_idx":1,"c_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MaxKey, 17.0)","(17.0, MinKey]"]}}}},
    "keys" :  99001,
    "docs" :  99000,
    "sorts":      0,
    "plans":     10,
    "rows" :  43514},

{">>>pipeline": [{"$match":{"$nor":[{"k_compound":{"$in":[14,20]}},{"$and":[{"c_compound":{"$exists":true}},{"a_compound":{"$elemMatch":{"$nin":[7,13,14,18]}}},{"z_noidx":{"$in":[2,5,7]}}]}],"d_compound":{"$nin":[10,8]}}},{"$sort":{"h_idx":1}},{"$project":{"h_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :  58221},

{">>>pipeline": [{"$match":{"$nor":[{"c_idx":{"$in":[13,3]}},{"c_compound":{"$in":[12,18]}},{"a_compound":{"$all":[10,12,1]}}],"a_idx":{"$lt":19}}},{"$sort":{"d_idx":-1}},{"$limit":234}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MaxKey, MinKey]"]}}}},
    "keys" :    234,
    "docs" :    234,
    "sorts":      0,
    "plans":     13,
    "rows" :    234},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$elemMatch":{"$in":[10,14,1]}}},{"z_idx":{"$lte":4}},{"a_idx":{"$all":[11,13,17]}}],"h_idx":{"$nin":[2,18]}}},{"$sort":{"h_idx":-1}},{"$project":{"_id":0,"a_compound":1,"a_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MaxKey, 18.0)","(18.0, 2.0)","(2.0, MinKey]"]}}}},
    "keys" :  98002,
    "docs" :  98000,
    "sorts":      0,
    "plans":      5,
    "rows" :  94371},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$all":[20,17,2]}},{"i_idx":{"$gte":9}}],"i_compound":{"$in":[14,1,11]}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_compound_1","indexBounds":{"i_compound":["[1.0, 1.0]","[11.0, 11.0]","[14.0, 14.0]"]}}},
    "keys" :      6,
    "docs" :      3,
    "sorts":      0,
    "plans":      9,
    "rows" :      2},

{">>>pipeline": [{"$match":{"a_compound":{"$elemMatch":{"$ne":15}},"z_compound":{"$in":[4,1]}}},{"$project":{"a_compound":1,"h_compound":1,"i_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_compound_1","indexBounds":{"z_compound":["[1.0, 1.0]","[4.0, 4.0]"]}}}},
    "keys" :  46329,
    "docs" :  46327,
    "sorts":      0,
    "plans":      4,
    "rows" :  46327},

{">>>pipeline": [{"$match":{"$and":[{"i_noidx":{"$exists":true}},{"a_compound":{"$exists":true}},{"a_compound":{"$nin":[4,1,17]}}]}},{"$project":{"a_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[MinKey, 1.0)","(1.0, 4.0)","(4.0, 17.0)","(17.0, MaxKey]"]}}}},
    "keys" : 406344,
    "docs" :  99999,
    "sorts":      0,
    "plans":      4,
    "rows" :  42455},

{">>>pipeline": [{"$match":{"$or":[{"i_compound":{"$nin":[17,11]}},{"a_idx":{"$all":[4,17]}},{"a_compound":{"$lte":11}},{"k_idx":{"$lte":5}}],"k_compound":{"$exists":true}}},{"$sort":{"z_idx":-1}},{"$project":{"_id":0,"a_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     13,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$or":[{"$and":[{"a_noidx":{"$lte":17}},{"a_compound":{"$all":[13,16,18]}}]},{"a_compound":{"$exists":true}},{"$and":[{"d_idx":{"$in":[9,16,3,3]}},{"c_noidx":{"$exists":false}}]}],"d_noidx":{"$lte":6}}},{"$sort":{"i_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     10,
    "rows" :  70000},

{">>>pipeline": [{"$match":{"$and":[{"k_compound":{"$in":[4,4]}},{"k_compound":{"$exists":true}}],"$or":[{"a_compound":{"$in":[3,16,9]}},{"d_compound":{"$in":[4,15,9]}},{"h_idx":{"$exists":false}}]}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[4.0, 4.0]"]}}},
    "keys" :    100,
    "docs" :    100,
    "sorts":      0,
    "plans":      8,
    "rows" :    100},

{">>>pipeline": [{"$match":{"$and":[{"$nor":[{"c_compound":{"$exists":false}},{"a_compound":{"$in":[16,19]}}]},{"a_compound":{"$nin":[11,12,7]}},{"i_idx":{"$exists":true}},{"a_idx":{"$lte":11}},{"h_noidx":{"$gte":8}}],"c_compound":{"$nin":[17,5,4]}}},{"$sort":{"k_idx":-1}},{"$project":{"k_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      9,
    "rows" :  78769},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$all":[9,19]}},{"d_idx":{"$lte":1}},{"a_compound":{"$exists":true}}],"c_noidx":{"$lt":8},"k_noidx":{"$nin":[11,17,15]}}},{"$sort":{"a_idx":-1}},{"$limit":244},{"$project":{"a_compound":1,"a_idx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}}}},
    "keys" :    244,
    "docs" :    244,
    "sorts":      0,
    "plans":      7,
    "rows" :    244},

{">>>pipeline": [{"$match":{"$and":[{"a_idx":{"$elemMatch":{"$exists":true}}},{"a_compound":{"$elemMatch":{"$gte":9,"$nin":[9,18,3]}}},{"k_idx":{"$gte":1}}],"i_idx":{"$ne":1}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["(9.0, 18.0)","(18.0, inf]"]}}},
    "keys" : 278012,
    "docs" :  99989,
    "sorts":      0,
    "plans":      5,
    "rows" :  99890},

{">>>pipeline": [{"$match":{"$or":[{"$or":[{"a_compound":{"$elemMatch":{"$in":[12,20,14]}}},{"a_compound":{"$all":[13,20]}},{"a_compound":{"$all":[5,6]}}]},{"a_compound":{"$elemMatch":{"$lt":5}}}]}},{"$sort":{"k_idx":1}},{"$limit":233},{"$project":{"_id":0,"a_noidx":1}}],
    "winningPlan": {"stage":"SUBPLAN","inputStage":{"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MinKey, MaxKey]"]}}}}}},
    "keys" :    233,
    "docs" :    233,
    "sorts":      0,
    "plans":     10,
    "rows" :    233},

{">>>pipeline": [{"$match":{"a_compound":{"$nin":[7,11,11]},"i_idx":{"$exists":true}}},{"$sort":{"a_idx":1}},{"$project":{"_id":0,"a_compound":1,"i_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      4,
    "rows" :  88740},

{">>>pipeline": [{"$match":{"$or":[{"$or":[{"a_idx":{"$eq":7}},{"a_idx":{"$all":[12,4,19,20]}},{"c_compound":{"$lte":20}}]},{"i_compound":{"$nin":[14,16]}},{"c_idx":{"$nin":[5,19]}}],"d_compound":{"$ne":7}}},{"$sort":{"z_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     13,
    "rows" :  90000},

{">>>pipeline": [{"$match":{"$nor":[{"d_noidx":{"$gte":14}},{"a_compound":{"$in":[19,4]}}],"a_compound":{"$nin":[15,4]}}},{"$sort":{"d_idx":-1}},{"$project":{"k_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :  81051},

{">>>pipeline": [{"$match":{"$and":[{"a_noidx":{"$elemMatch":{"$gt":14}}},{"d_compound":{"$nin":[13,7,1]}}],"$nor":[{"a_compound":{"$elemMatch":{"$in":[13,3],"$nin":[1,1]}}},{"a_compound":{"$all":[8,1,20,3]}}],"a_idx":{"$lt":9}}},{"$sort":{"k_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     14,
    "rows" :  57636},

{">>>pipeline": [{"$match":{"$or":[{"d_compound":{"$exists":false}},{"a_compound":{"$elemMatch":{"$exists":true}}},{"a_idx":{"$exists":false}},{"i_compound":{"$exists":false}}],"a_idx":{"$elemMatch":{"$lte":9,"$nin":[11,10]}}}},{"$sort":{"h_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     10,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$gt":4}},{"a_compound":{"$ne":3}}],"d_compound":{"$exists":true}}},{"$project":{"h_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["(4.0, inf]"]}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[MinKey, 3.0)","(3.0, MaxKey]"]}}}]}}},
    "keys" : 775919,
    "docs" : 199997,
    "sorts":      0,
    "plans":      4,
    "rows" :  99997},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$lte":12}},{"a_idx":{"$all":[11,5,2,7]}}],"k_noidx":{"$in":[1,9]}}},{"$sort":{"z_idx":-1}},{"$project":{"_id":0,"i_idx":1,"z_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     11,
    "rows" :    200},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$in":[2,3]}},{"a_compound":{"$exists":true}}],"a_compound":{"$exists":true}}},{"$sort":{"d_idx":1}},{"$project":{"_id":0,"a_compound":1,"a_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :  59638},

{">>>pipeline": [{"$match":{"a_compound":{"$elemMatch":{"$exists":true}},"a_idx":{"$gt":20},"c_noidx":{"$ne":2},"k_compound":{"$exists":true}}},{"$sort":{"k_idx":-1}},{"$project":{"_id":0,"k_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      6,
    "rows" :  99979},

{">>>pipeline": [{"$match":{"$or":[{"$and":[{"a_idx":{"$gte":15}},{"a_compound":{"$nin":[4,14,12,20]}}]},{"a_compound":{"$exists":false}}],"d_compound":{"$lt":15}}},{"$sort":{"h_idx":-1}},{"$project":{"_id":0,"a_compound":1,"d_noidx":1,"k_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      9,
    "rows" :  81023},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$lte":9}},{"a_idx":{"$elemMatch":{"$lt":14}}},{"k_compound":{"$exists":false}},{"a_compound":{"$elemMatch":{"$exists":true,"$ne":4}}}],"k_compound":{"$gte":8}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[8.0, inf]"]}}},
    "keys" :  99200,
    "docs" :  99200,
    "sorts":      0,
    "plans":     12,
    "rows" :  99200},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[12,8]}},{"d_noidx":{"$in":[12,2]}}],"a_idx":{"$elemMatch":{"$gte":16}},"a_noidx":{"$lt":15}}},{"$skip":28}],
    "winningPlan": {"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[16.0, inf]"]}}}},
    "keys" : 273000,
    "docs" :  99984,
    "sorts":      0,
    "plans":      5,
    "rows" :  89958},

{">>>pipeline": [{"$match":{"a_compound":{"$nin":[1,19]},"a_idx":{"$elemMatch":{"$exists":true}}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[MinKey, 1.0)","(1.0, 19.0)","(19.0, MaxKey]"]}}},
    "keys" : 423437,
    "docs" : 100000,
    "sorts":      0,
    "plans":      3,
    "rows" :  54890},

{">>>pipeline": [{"$match":{"$or":[{"k_compound":{"$nin":[7,7,9]}},{"c_idx":{"$nin":[8,7,2]}},{"k_compound":{"$eq":20}},{"a_idx":{"$all":[10,8]}}],"a_compound":{"$exists":true}}},{"$sort":{"d_idx":1}},{"$limit":82},{"$project":{"i_compound":1,"i_idx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" :     82,
    "docs" :     82,
    "sorts":      0,
    "plans":     13,
    "rows" :     82},

{">>>pipeline": [{"$match":{"$or":[{"c_compound":{"$in":[7,12,17]}},{"a_idx":{"$nin":[14,3]}},{"a_compound":{"$all":[1,7]}}],"i_noidx":{"$nin":[10,2]}}},{"$sort":{"d_idx":-1}},{"$project":{"_id":0,"c_noidx":1,"h_compound":1,"k_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     10,
    "rows" :  73386},

{">>>pipeline": [{"$match":{"$nor":[{"k_compound":{"$gt":1}},{"a_compound":{"$all":[14,9,5,20]}},{"d_noidx":{"$exists":false}}],"a_idx":{"$exists":true}}},{"$sort":{"z_idx":-1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[MinKey, 1.0]","(inf, MaxKey]"]}}}},
    "keys" :    201,
    "docs" :    200,
    "sorts":   1260,
    "plans":     14,
    "rows" :    200},

{">>>pipeline": [{"$match":{"$or":[{"$and":[{"i_compound":{"$exists":false}},{"a_idx":{"$all":[11,4]}}]},{"a_compound":{"$exists":true}},{"a_compound":{"$lte":18}}],"a_idx":{"$lt":6}}},{"$sort":{"k_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     12,
    "rows" :  99448},

{">>>pipeline": [{"$match":{"$and":[{"z_compound":{"$lt":12}},{"a_compound":{"$lte":11}}],"$or":[{"a_idx":{"$nin":[19,1,16,19]}},{"$or":[{"$or":[{"a_idx":{"$elemMatch":{"$gt":16,"$in":[1,1],"$nin":[17,16,15]}}},{"c_compound":{"$in":[9,8,18]}},{"a_compound":{"$all":[5,15,4]}},{"a_compound":{"$gt":18}}]},{"a_idx":{"$nin":[2,2,17]}}]}]}},{"$limit":89},{"$project":{"a_noidx":1,"d_noidx":1,"k_idx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_compound_1","indexBounds":{"z_compound":["[-inf, 12.0)"]}}}}},
    "keys" :     89,
    "docs" :     89,
    "sorts":      0,
    "plans":     13,
    "rows" :     89},

{">>>pipeline": [{"$match":{"a_compound":{"$gt":20},"i_idx":{"$exists":true}}},{"$sort":{"c_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      4,
    "rows" :  99979},

{">>>pipeline": [{"$match":{"a_compound":{"$elemMatch":{"$gte":8}},"i_compound":{"$ne":3}}},{"$sort":{"z_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :  99992},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$exists":true}},{"z_idx":{"$nin":[15,17]}},{"a_idx":{"$elemMatch":{"$lt":8,"$nin":[19,17,5]}}},{"a_idx":{"$in":[9,12]}}],"k_compound":{"$nin":[20,2]}}},{"$sort":{"z_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      6,
    "rows" :  99800},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$nin":[17,1,20,1]}},{"$or":[{"a_compound":{"$elemMatch":{"$nin":[5,8]}}},{"c_idx":{"$exists":false}},{"i_idx":{"$exists":false}},{"$nor":[{"$or":[{"h_idx":{"$exists":false}},{"h_compound":{"$gt":10}}]},{"k_noidx":{"$nin":[4,2,1]}},{"c_idx":{"$in":[13,18]}}]}]}],"i_idx":{"$ne":9}}},{"$sort":{"a_idx":1}},{"$project":{"_id":0,"a_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      9,
    "rows" :  54272},

{">>>pipeline": [{"$match":{"a_compound":{"$exists":true},"c_idx":{"$nin":[7,15]},"d_idx":{"$nin":[2,4,7,19]}}},{"$sort":{"a_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :  70000},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$lt":12}},{"a_idx":{"$all":[7,3,5]}}],"a_compound":{"$nin":[5,20,1]}}},{"$sort":{"d_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     11,
    "rows" :  46487},

{">>>pipeline": [{"$match":{"i_compound":{"$nin":[19,19]},"k_compound":{"$exists":true}}},{"$sort":{"a_idx":-1}},{"$limit":228},{"$project":{"a_idx":1,"c_idx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}}}},
    "keys" :    228,
    "docs" :    228,
    "sorts":      0,
    "plans":      5,
    "rows" :    228},

{">>>pipeline": [{"$match":{"a_compound":{"$in":[1,8]}}},{"$sort":{"i_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      3,
    "rows" :  50701},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[1,17,6,16]}},{"a_idx":{"$in":[9,10,16]}}],"a_noidx":{"$elemMatch":{"$eq":4}},"z_idx":{"$gt":1}}},{"$sort":{"z_idx":1}},{"$project":{"_id":0,"c_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["(1.0, inf]"]}}}},
    "keys" :  61576,
    "docs" :  61576,
    "sorts":      0,
    "plans":     12,
    "rows" :  12348},

{">>>pipeline": [{"$match":{"$or":[{"z_compound":{"$in":[20,8,8]}},{"a_compound":{"$exists":true}}],"a_compound":{"$gt":2},"h_compound":{"$exists":true},"k_idx":{"$nin":[14,11]}}},{"$sort":{"a_idx":1}},{"$project":{"h_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      9,
    "rows" :  99799},

{">>>pipeline": [{"$match":{"$or":[{"h_compound":{"$lte":16}},{"$and":[{"a_compound":{"$elemMatch":{"$lt":9}}},{"z_noidx":{"$in":[14,17]}},{"k_compound":{"$gte":12}}]},{"a_compound":{"$all":[15,6,10]}}],"a_compound":{"$nin":[6,5,15]},"a_idx":{"$lte":2}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[-inf, 2.0]"]}}},
    "keys" :  93298,
    "docs" :  79322,
    "sorts":      0,
    "plans":     13,
    "rows" :  10762},

{">>>pipeline": [{"$match":{"$and":[{"$or":[{"a_idx":{"$all":[2,9]}},{"k_compound":{"$nin":[13,20]}},{"a_idx":{"$all":[4,18]}},{"z_idx":{"$nin":[13,20]}}]},{"z_compound":{"$nin":[12,17]}}]}},{"$sort":{"d_idx":-1}},{"$project":{"_id":0,"a_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     13,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$or":[{"k_idx":{"$gt":17}},{"$and":[{"a_noidx":{"$in":[11,8,9]}},{"h_compound":{"$nin":[20,18,1,4]}}]}],"i_compound":{"$exists":true}}},{"$sort":{"h_idx":1,"i_idx":-1}},{"$limit":46},{"$project":{"_id":0,"a_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_compound_1","indexBounds":{"i_compound":["[MinKey, MaxKey]"]}}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts": 475621,
    "plans":      3,
    "rows" :     46},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$exists":true}},{"$or":[{"a_compound":{"$lt":6}},{"a_noidx":{"$all":[7,14,6]}}]}],"$or":[{"a_compound":{"$lt":4}},{"a_compound":{"$elemMatch":{"$eq":8}}}]}},{"$sort":{"a_idx":-1,"d_idx":1}},{"$limit":158},{"$project":{"_id":0,"a_idx":1,"i_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[-inf, 4.0)"]}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1_i_compound_1","indexBounds":{"a_compound":["[8.0, 8.0]"],"i_compound":["[MinKey, MaxKey]"]}}}]}}}},
    "keys" : 129165,
    "docs" : 104090,
    "sorts": 568987,
    "plans":      6,
    "rows" :    158},

{">>>pipeline": [{"$match":{"$or":[{"c_compound":{"$in":[1,16]}},{"$and":[{"$or":[{"h_compound":{"$exists":true}},{"d_noidx":{"$lt":8}}]},{"k_noidx":{"$exists":false}},{"a_compound":{"$all":[20,9]}},{"c_idx":{"$ne":10}},{"a_noidx":{"$exists":true}}]}],"d_idx":{"$nin":[3,16]}}},{"$sort":{"a_idx":-1}},{"$project":{"d_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":     11,
    "rows" :  90000},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[15,17,4]}},{"c_idx":{"$in":[4,2]}}],"h_idx":{"$gt":10}}},{"$sort":{"h_idx":1}},{"$limit":137}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["(10.0, inf]"]}}}},
    "keys" :    137,
    "docs" :    137,
    "sorts":      0,
    "plans":     10,
    "rows" :    137},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$elemMatch":{"$nin":[4,20,9,5,5]}}},{"i_compound":{"$gte":8}}],"a_noidx":{"$elemMatch":{"$lte":16}}}},{"$sort":{"i_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :  99992},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$elemMatch":{"$eq":19}}},{"c_compound":{"$lte":8}}],"a_compound":{"$gte":10}}},{"$project":{"d_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[10.0, inf]"]}}}},
    "keys" : 279011,
    "docs" :  99990,
    "sorts":      0,
    "plans":      4,
    "rows" :  99990},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[12,6,20,14]}},{"i_idx":{"$exists":false}},{"a_noidx":{"$ne":4}}],"i_idx":{"$nin":[8,9,16]}}},{"$sort":{"i_idx":-1}},{"$limit":153},{"$project":{"_id":0,"a_compound":1,"i_idx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MaxKey, 16.0)","(16.0, 9.0)","(9.0, 8.0)","(8.0, MinKey]"]}}}}},
    "keys" :    906,
    "docs" :    906,
    "sorts":      0,
    "plans":     11,
    "rows" :    153},

{">>>pipeline": [{"$match":{"$nor":[{"i_idx":{"$in":[18,18]}},{"a_compound":{"$eq":12}}],"d_noidx":{"$lte":12}}},{"$sort":{"a_idx":-1}},{"$project":{"c_idx":1,"d_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      4,
    "rows" :  98999},

{">>>pipeline": [{"$match":{"a_idx":{"$nin":[11,5,17]},"z_compound":{"$ne":6}}},{"$sort":{"a_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      4,
    "rows" :  84673},

{">>>pipeline": [{"$match":{"a_compound":{"$exists":true},"c_compound":{"$in":[17,1,1,1,20]}}},{"$sort":{"d_idx":1,"i_idx":1}},{"$limit":166}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_compound_1","indexBounds":{"c_compound":["[1.0, 1.0]","[17.0, 17.0]","[20.0, 20.0]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts": 611199,
    "plans":      4,
    "rows" :    166},

{">>>pipeline": [{"$match":{"$and":[{"$nor":[{"a_compound":{"$in":[10,17]}},{"a_idx":{"$all":[14,17,7,11]}}]},{"k_idx":{"$exists":true}}],"d_idx":{"$gte":9}}},{"$sort":{"z_idx":1}},{"$limit":171},{"$skip":6}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" :   1770,
    "docs" :   1770,
    "sorts":      0,
    "plans":      6,
    "rows" :    165},

{">>>pipeline": [{"$match":{"i_compound":{"$gte":2},"i_idx":{"$nin":[6,14]},"z_idx":{"$exists":true}}},{"$sort":{"a_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :  99996},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$nin":[3,10,2,6,16]}},{"a_idx":{"$all":[15,7]}}],"a_idx":{"$exists":true},"k_idx":{"$gte":13}}},{"$sort":{"c_idx":-1,"i_idx":-1}},{"$limit":152},{"$skip":15}],
    "winningPlan": {"stage":"SKIP","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts": 203583,
    "plans":      8,
    "rows" :    137},

{">>>pipeline": [{"$match":{"$or":[{"$and":[{"a_idx":{"$elemMatch":{"$exists":true,"$in":[20,13,19,17],"$ne":14}}},{"d_noidx":{"$lte":1}},{"h_idx":{"$gte":7}},{"z_compound":{"$exists":true}}]},{"i_compound":{"$exists":true}}],"i_idx":{"$gt":11},"k_idx":{"$nin":[13,19]}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["(11.0, inf]"]}}},
    "keys" :  99988,
    "docs" :  99988,
    "sorts":      0,
    "plans":      8,
    "rows" :  99788},

{">>>pipeline": [{"$match":{"$and":[{"$nor":[{"a_compound":{"$exists":false}},{"z_compound":{"$eq":15}}]},{"a_idx":{"$lte":10}},{"$and":[{"i_idx":{"$lte":10}},{"d_idx":{"$eq":3}}]}],"a_idx":{"$elemMatch":{"$exists":true}}}},{"$project":{"a_idx":1,"h_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[-inf, 10.0]"]}}}},
    "keys" :     11,
    "docs" :     11,
    "sorts":      0,
    "plans":      8,
    "rows" :      1},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$gt":16}},{"$and":[{"a_compound":{"$ne":9}},{"i_noidx":{"$lte":1}}]},{"a_compound":{"$exists":true}}],"a_noidx":{"$in":[5,10]},"k_compound":{"$lte":9}}},{"$sort":{"i_idx":-1}},{"$limit":160},{"$project":{"i_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[-inf, 9.0]"]}}}}},
    "keys" :   1000,
    "docs" :   1000,
    "sorts":    735,
    "plans":     12,
    "rows" :    126},

{">>>pipeline": [{"$match":{"$or":[{"c_compound":{"$nin":[14,12,5]}},{"a_compound":{"$gt":17}}],"a_idx":{"$nin":[6,9]},"h_compound":{"$gte":11},"z_compound":{"$ne":9}}},{"$sort":{"a_idx":-1}},{"$project":{"_id":0,"h_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":     11,
    "rows" :  70285},

{">>>pipeline": [{"$match":{"a_compound":{"$elemMatch":{"$gte":18}},"c_compound":{"$lte":5},"d_idx":{"$lt":17}}},{"$sort":{"d_idx":-1,"z_idx":1}},{"$limit":127}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_compound_1","indexBounds":{"c_compound":["[-inf, 5.0]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts": 584314,
    "plans":      5,
    "rows" :    127},

{">>>pipeline": [{"$match":{"$nor":[{"z_compound":{"$lte":3}},{"$or":[{"a_compound":{"$all":[6,10,18,18]}},{"z_idx":{"$lt":6}}]}],"a_idx":{"$gt":12}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MinKey, -inf)","[6.0, MaxKey]"]}}},
    "keys" :   1372,
    "docs" :   1371,
    "sorts":      0,
    "plans":     12,
    "rows" :   1371},

{">>>pipeline": [{"$match":{"$nor":[{"c_compound":{"$gt":12}},{"a_compound":{"$exists":false}}],"a_idx":{"$lte":3}}},{"$sort":{"d_idx":1}},{"$project":{"_id":0,"a_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      6,
    "rows" :  92730},

{">>>pipeline": [{"$match":{"$nor":[{"h_noidx":{"$nin":[9,4,4]}},{"a_compound":{"$all":[5,17,6]}},{"a_noidx":{"$elemMatch":{"$gt":10}}}],"i_noidx":{"$gte":6}}},{"$sort":{"i_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      9,
    "rows" :      1},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$exists":true}},{"$or":[{"i_compound":{"$ne":1}},{"k_compound":{"$gt":3}},{"d_idx":{"$exists":true}}]},{"a_idx":{"$in":[15,10,5,17]}}],"c_idx":{"$nin":[11,3,14]}}},{"$sort":{"d_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     10,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$and":[{"h_compound":{"$nin":[8,3]}},{"$and":[{"a_noidx":{"$elemMatch":{"$nin":[7,1,12]}}},{"i_noidx":{"$nin":[3,6]}},{"a_idx":{"$elemMatch":{"$exists":true}}},{"i_compound":{"$ne":12}}]},{"h_idx":{"$nin":[20,15]}}],"a_noidx":{"$elemMatch":{"$gt":18}}}},{"$sort":{"h_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MaxKey, 20.0)","(20.0, 15.0)","(15.0, MinKey]"]}}},
    "keys" :  98002,
    "docs" :  98000,
    "sorts":      0,
    "plans":      5,
    "rows" :  95984},

{">>>pipeline": [{"$match":{"a_compound":{"$gt":2}}},{"$sort":{"a_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      3,
    "rows" :  99999},

{">>>pipeline": [{"$match":{"$or":[{"$or":[{"a_idx":{"$all":[8,2]}},{"a_idx":{"$elemMatch":{"$eq":8}}}]},{"k_idx":{"$nin":[18,14]}},{"i_idx":{"$in":[11,15]}}],"i_compound":{"$exists":true}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_compound_1","indexBounds":{"i_compound":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :  99900},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[16,10]}},{"h_idx":{"$exists":false}},{"a_compound":{"$elemMatch":{"$eq":19,"$lte":4}}}],"a_idx":{"$exists":true},"k_compound":{"$gte":18}}},{"$sort":{"d_idx":-1,"i_idx":1,"z_idx":-1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1_a_compound_1","indexBounds":{"k_compound":["[18.0, inf]"],"a_compound":["[MinKey, MaxKey]"]}}}},
    "keys" : 462958,
    "docs" :  98200,
    "sorts": 1226986,
    "plans":     13,
    "rows" :  98200},

{">>>pipeline": [{"$match":{"$nor":[{"d_noidx":{"$gt":6}},{"a_compound":{"$all":[14,20,7,8]}}],"h_idx":{"$nin":[20,1,18,15]}}},{"$sort":{"z_idx":1}},{"$project":{"a_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     12,
    "rows" :  67000},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$exists":true}},{"a_idx":{"$gt":13}},{"a_compound":{"$elemMatch":{"$in":[14,10]}}}],"i_idx":{"$ne":17}}},{"$sort":{"k_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      6,
    "rows" :  99999},

{">>>pipeline": [{"$match":{"a_compound":{"$elemMatch":{"$lte":20}},"a_idx":{"$exists":true}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[-inf, 20.0]"]}}},
    "keys" : 200941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      3,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$elemMatch":{"$exists":false,"$nin":[15,15]}}},{"z_compound":{"$exists":true}},{"i_compound":{"$gte":4}}],"d_noidx":{"$nin":[17,8,17,14]}}},{"$sort":{"z_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :  90000},

{">>>pipeline": [{"$match":{"$or":[{"z_compound":{"$nin":[3,20]}},{"a_compound":{"$nin":[13,17]}}],"a_noidx":{"$in":[14,2]}}},{"$sort":{"h_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :  39466},

{">>>pipeline": [{"$match":{"$or":[{"k_idx":{"$eq":14}},{"d_compound":{"$in":[13,14]}},{"c_compound":{"$ne":19}}],"c_compound":{"$in":[16,1,5]},"z_noidx":{"$exists":true}}},{"$project":{"a_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"IXSCAN","indexName":"c_compound_1","indexBounds":{"c_compound":["[1.0, 1.0]","[5.0, 5.0]","[16.0, 16.0]"]}},{"stage":"IXSCAN","indexName":"d_compound_1","indexBounds":{"d_compound":["[13.0, 13.0]","[14.0, 14.0]"]}},{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[14.0, 14.0]"]}}]}}},
    "keys" : 100100,
    "docs" : 100000,
    "sorts":      0,
    "plans":      8,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"c_compound":{"$gte":1},"d_compound":{"$exists":true}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_compound_1","indexBounds":{"c_compound":["[1.0, inf]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      4,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$and":[{"c_noidx":{"$exists":true}},{"a_compound":{"$gt":12}}],"$or":[{"i_compound":{"$eq":9}},{"k_idx":{"$gte":8}}],"a_noidx":{"$lt":1}}},{"$sort":{"i_idx":1}},{"$project":{"a_compound":1,"a_noidx":1,"i_idx":1,"k_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      6,
    "rows" :   9899},

{">>>pipeline": [{"$match":{"$or":[{"$or":[{"d_idx":{"$nin":[5,2]}},{"a_compound":{"$elemMatch":{"$exists":true,"$gte":20,"$nin":[17,16,14]}}}]},{"c_compound":{"$in":[18,6,20]}},{"a_idx":{"$elemMatch":{"$ne":4}}}],"z_compound":{"$gte":4}}},{"$sort":{"k_idx":-1,"z_idx":1}},{"$project":{"a_compound":1,"k_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_compound_1","indexBounds":{"z_compound":["[4.0, inf]"]}}}}},
    "keys" :  12111,
    "docs" :  12111,
    "sorts": 125977,
    "plans":      8,
    "rows" :  12111},

{">>>pipeline": [{"$match":{"$and":[{"d_noidx":{"$gt":6}},{"k_idx":{"$exists":true}},{"d_idx":{"$lt":10}},{"$or":[{"a_idx":{"$nin":[5,12]}},{"a_idx":{"$exists":false}},{"i_compound":{"$exists":false}}]}],"a_noidx":{"$nin":[17,3,6]},"c_idx":{"$nin":[8,18]}}},{"$sort":{"a_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      6,
    "rows" :  22872},

{">>>pipeline": [{"$match":{"$nor":[{"$nor":[{"a_compound":{"$all":[2,14]}},{"a_idx":{"$elemMatch":{"$gte":15}}},{"a_compound":{"$ne":19}}]},{"a_idx":{"$nin":[6,7,7]}}],"i_compound":{"$nin":[20,13,18]}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[6.0, 6.0]","[7.0, 7.0]"]}}},
    "keys" :  21131,
    "docs" :  20993,
    "sorts":      0,
    "plans":     12,
    "rows" :  20993},

{">>>pipeline": [{"$match":{"$nor":[{"a_idx":{"$all":[18,1,19]}},{"c_compound":{"$in":[5,19]}}],"a_idx":{"$ne":20},"k_compound":{"$eq":3}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[3.0, 3.0]"]}}},
    "keys" :    100,
    "docs" :    100,
    "sorts":      0,
    "plans":      6,
    "rows" :    100},

{">>>pipeline": [{"$match":{"$and":[{"$and":[{"a_compound":{"$lte":7}},{"a_compound":{"$gte":8}},{"k_noidx":{"$nin":[3,7]}}]},{"c_idx":{"$in":[11,9,1,11,15]}}],"z_noidx":{"$lte":17}}},{"$limit":255}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[8.0, inf]"]}}}},
    "keys" :    255,
    "docs" :    255,
    "sorts":      0,
    "plans":      5,
    "rows" :    255},

{">>>pipeline": [{"$match":{"$or":[{"$or":[{"a_compound":{"$lte":18}},{"a_compound":{"$exists":false}}]},{"c_idx":{"$lte":16}}],"c_compound":{"$in":[1,19,17]},"d_noidx":{"$in":[9,11,16]}}},{"$project":{"_id":0,"a_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[-inf, 16.0]"]}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[null, null]","[-inf, 18.0]"]}}}]}}},
    "keys" : 298942,
    "docs" : 200000,
    "sorts":      0,
    "plans":      6,
    "rows" :  10000},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$in":[13,11,19]}},{"c_noidx":{"$gt":15}}],"$or":[{"i_compound":{"$nin":[5,14,12,6]}},{"i_compound":{"$exists":true}}]}},{"$sort":{"a_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":     12,
    "rows" :  96996},

{">>>pipeline": [{"$match":{"$or":[{"$and":[{"i_compound":{"$exists":false}},{"z_compound":{"$ne":6}}]},{"a_compound":{"$gt":16}},{"a_compound":{"$gt":20}}],"a_idx":{"$nin":[19,18,6,11]}}},{"$sort":{"z_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     12,
    "rows" :  86139},

{">>>pipeline": [{"$match":{"c_compound":{"$nin":[5,16,17]},"z_compound":{"$lt":18}}},{"$sort":{"a_idx":1}},{"$project":{"d_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$and":[{"$and":[{"a_idx":{"$gt":10}},{"c_compound":{"$in":[5,1]}}]},{"a_compound":{"$elemMatch":{"$nin":[7,15,3,1,13]}}},{"a_noidx":{"$lt":10}}],"a_compound":{"$gte":20}}},{"$sort":{"i_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      8,
    "rows" :  99980},

{">>>pipeline": [{"$match":{"$or":[{"$or":[{"z_compound":{"$exists":true}},{"a_idx":{"$all":[7,20,12,1]}}]},{"a_idx":{"$all":[15,18]}}],"h_noidx":{"$nin":[17,13,9,16]},"z_idx":{"$lt":3}}},{"$sort":{"a_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":     12,
    "rows" :  67493},

{">>>pipeline": [{"$match":{"a_compound":{"$lte":8},"i_compound":{"$exists":true},"k_compound":{"$in":[4,12,17,4]}}},{"$sort":{"c_idx":-1}}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[4.0, 4.0]","[12.0, 12.0]","[17.0, 17.0]"]}}}},
    "keys" :    303,
    "docs" :    300,
    "sorts":   2011,
    "plans":      7,
    "rows" :    300},

{">>>pipeline": [{"$match":{"$nor":[{"c_idx":{"$gte":15}},{"a_compound":{"$all":[13,15,9,10]}}],"a_compound":{"$exists":true},"a_idx":{"$exists":true}}},{"$sort":{"k_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     15,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$nor":[{"d_idx":{"$exists":false}},{"$or":[{"a_compound":{"$nin":[17,14,16]}},{"a_compound":{"$all":[11,9,10]}}]}],"z_idx":{"$nin":[9,2]},"z_noidx":{"$nin":[11,11,8,12,19]}}},{"$project":{"_id":0,"a_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[14.0, 14.0]","[16.0, 16.0]","[17.0, 17.0]"]}}}},
    "keys" :   3002,
    "docs" :   3000,
    "sorts":      0,
    "plans":     12,
    "rows" :   2028},

{">>>pipeline": [{"$match":{"a_compound":{"$elemMatch":{"$exists":true,"$in":[6,7,1],"$ne":8}},"a_idx":{"$lt":20}}},{"$sort":{"c_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      4,
    "rows" :  57703},

{">>>pipeline": [{"$match":{"$and":[{"i_compound":{"$gte":7}},{"k_compound":{"$gt":15}}],"i_idx":{"$nin":[20,14]},"k_idx":{"$nin":[11,14]}}},{"$sort":{"a_idx":1}},{"$project":{"_id":0,"d_compound":1,"d_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      7,
    "rows" :  98399},

{">>>pipeline": [{"$match":{"$nor":[{"z_idx":{"$in":[13,5]}},{"$nor":[{"a_compound":{"$all":[18,8,9]}},{"k_compound":{"$gte":18}}]}],"a_compound":{"$lt":13}}},{"$sort":{"i_idx":-1}},{"$project":{"_id":0,"h_compound":1,"k_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     13,
    "rows" :  95417},

{">>>pipeline": [{"$match":{"$or":[{"z_compound":{"$exists":true}},{"a_compound":{"$nin":[10,14,19]}}],"k_idx":{"$lte":13}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[-inf, 13.0]"]}}},
    "keys" :   1400,
    "docs" :   1400,
    "sorts":      0,
    "plans":      5,
    "rows" :   1400},

{">>>pipeline": [{"$match":{"$and":[{"a_noidx":{"$exists":true}},{"a_compound":{"$elemMatch":{"$lt":5,"$ne":10}}}],"a_compound":{"$in":[9,1,2,6]},"a_noidx":{"$in":[6,2]}}},{"$sort":{"z_idx":-1}},{"$project":{"a_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :  45547},

{">>>pipeline": [{"$match":{"$nor":[{"d_idx":{"$in":[10,11]}},{"k_compound":{"$eq":2}},{"a_compound":{"$nin":[10,8]}},{"c_noidx":{"$gt":17}}],"i_idx":{"$gt":17}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[8.0, 8.0]","[10.0, 10.0]"]}}},
    "keys" :  11090,
    "docs" :  11084,
    "sorts":      0,
    "plans":      6,
    "rows" :  11082},

{">>>pipeline": [{"$match":{"$nor":[{"a_idx":{"$all":[7,7,10]}},{"a_compound":{"$in":[1,13]}},{"c_compound":{"$exists":false}}],"a_idx":{"$exists":true},"k_noidx":{"$nin":[15,18,9,18]},"z_idx":{"$in":[1,9,12,5]}}},{"$sort":{"z_idx":1}},{"$project":{"a_idx":1,"i_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[1.0, 1.0]","[5.0, 5.0]","[9.0, 9.0]","[12.0, 12.0]"]}}}},
    "keys" :  41280,
    "docs" :  41277,
    "sorts":      0,
    "plans":      7,
    "rows" :   2547},

{">>>pipeline": [{"$match":{"$nor":[{"k_compound":{"$nin":[10,8,11]}},{"$nor":[{"i_idx":{"$in":[15,5,15]}},{"$nor":[{"d_compound":{"$gt":3}},{"a_idx":{"$in":[17,17,9]}}]},{"a_idx":{"$in":[20,14,17,11,5]}}]}],"a_compound":{"$lte":5},"d_noidx":{"$nin":[4,4]}}},{"$project":{"a_noidx":1,"i_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"OR","inputStages":[{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[5.0, 5.0]","[15.0, 15.0]"]}},{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_compound_1_k_compound_1","indexBounds":{"d_compound":["[MinKey, 3.0]","(inf, MaxKey]"],"k_compound":["[8.0, 8.0]","[10.0, 10.0]","[11.0, 11.0]"]}}},{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[5.0, 5.0]","[11.0, 11.0]","[14.0, 14.0]","[17.0, 17.0]","[20.0, 20.0]"]}}]}}},
    "keys" :  16750,
    "docs" :  16717,
    "sorts":      0,
    "plans":      7,
    "rows" :    205},

{">>>pipeline": [{"$match":{"$or":[{"z_compound":{"$exists":false}},{"a_idx":{"$exists":true}},{"a_compound":{"$nin":[15,20]}}],"i_noidx":{"$gt":8}}},{"$sort":{"h_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :  99991},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$in":[1,2,10]}},{"a_compound":{"$elemMatch":{"$nin":[17,2,11,6]}}}],"$nor":[{"h_noidx":{"$nin":[12,4,2,15]}},{"i_compound":{"$in":[4,13]}},{"d_idx":{"$in":[2,7,19]}}]}},{"$sort":{"d_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MaxKey, 19.0)","(19.0, 7.0)","(7.0, 2.0)","(2.0, MinKey]"]}}},
    "keys" :  80002,
    "docs" :  80000,
    "sorts":      0,
    "plans":      7,
    "rows" :   1395},

{">>>pipeline": [{"$match":{"a_compound":{"$lte":20},"a_noidx":{"$elemMatch":{"$in":[13,16,20,5]}}}},{"$sort":{"k_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      3,
    "rows" :  15456},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$elemMatch":{"$exists":true,"$gt":6}}},{"a_compound":{"$in":[4,8,11]}}],"k_noidx":{"$in":[4,14]}}},{"$sort":{"a_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :    200},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$all":[19,11]}},{"a_compound":{"$elemMatch":{"$exists":false,"$nin":[11,12,4]}}},{"$or":[{"i_compound":{"$exists":true}},{"a_compound":{"$exists":false}}]},{"a_compound":{"$all":[17,10]}}],"k_noidx":{"$nin":[5,15]}}},{"$sort":{"a_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":     10,
    "rows" :  99800},

{">>>pipeline": [{"$match":{"a_compound":{"$elemMatch":{"$gt":4}},"a_idx":{"$lt":16}}},{"$sort":{"d_idx":-1}},{"$project":{"_id":0,"a_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      4,
    "rows" :  99995},

{">>>pipeline": [{"$match":{"a_compound":{"$nin":[3,15]},"a_idx":{"$elemMatch":{"$in":[1,13,3]}}}},{"$project":{"a_compound":1,"a_noidx":1,"d_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[1.0, 1.0]","[3.0, 3.0]","[13.0, 13.0]"]}}}},
    "keys" :  71295,
    "docs" :  64655,
    "sorts":      0,
    "plans":      3,
    "rows" :  38497},

{">>>pipeline": [{"$match":{"a_compound":{"$nin":[12,1,2,9]},"a_idx":{"$exists":true},"k_noidx":{"$ne":9}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[MinKey, 1.0)","(1.0, 2.0)","(2.0, 9.0)","(9.0, 12.0)","(12.0, MaxKey]"]}}},
    "keys" : 374634,
    "docs" :  99997,
    "sorts":      0,
    "plans":      3,
    "rows" :  20795},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[8,2,5,17]}},{"d_noidx":{"$in":[7,5]}}],"k_compound":{"$gte":7}}},{"$sort":{"k_idx":-1}},{"$project":{"i_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     13,
    "rows" :  79400},

{">>>pipeline": [{"$match":{"$and":[{"$or":[{"$and":[{"a_compound":{"$nin":[4,15,11]}},{"a_compound":{"$exists":false}},{"$or":[{"h_noidx":{"$nin":[20,6,1]}},{"i_compound":{"$nin":[10,14,15]}}]},{"i_compound":{"$nin":[7,20]}}]},{"$or":[{"a_compound":{"$lte":6}},{"i_idx":{"$ne":1}},{"h_compound":{"$exists":false}}]}]},{"i_noidx":{"$gt":6}}],"h_compound":{"$exists":true}}},{"$sort":{"k_idx":1}},{"$project":{"_id":0,"a_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     10,
    "rows" :  99993},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$gte":7}},{"d_noidx":{"$in":[3,20]}}],"$or":[{"a_idx":{"$all":[20,11,4]}},{"a_compound":{"$all":[19,19,5,9]}},{"c_compound":{"$exists":true}}]}},{"$sort":{"a_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":     12,
    "rows" :   9999},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$exists":true}},{"k_compound":{"$nin":[6,13]}},{"c_compound":{"$in":[1,1,9]}}],"d_idx":{"$in":[11,1,9]}}},{"$project":{"a_idx":1,"a_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[1.0, 1.0]","[9.0, 9.0]","[11.0, 11.0]"]}}}},
    "keys" :  20001,
    "docs" :  20000,
    "sorts":      0,
    "plans":      9,
    "rows" :  20000},

{">>>pipeline": [{"$match":{"d_compound":{"$exists":true},"i_idx":{"$nin":[1,17,1]}}},{"$sort":{"i_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MaxKey, 17.0)","(17.0, 1.0)","(1.0, MinKey]"]}}},
    "keys" : 100000,
    "docs" :  99998,
    "sorts":      0,
    "plans":      3,
    "rows" :  99998},

{">>>pipeline": [{"$match":{"a_compound":{"$lte":3}}},{"$sort":{"i_idx":-1}},{"$project":{"_id":0,"a_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      3,
    "rows" :  92730},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$exists":false}},{"i_idx":{"$exists":false}},{"a_idx":{"$exists":false}}],"a_noidx":{"$eq":13}}},{"$sort":{"a_idx":-1}},{"$project":{"_id":0,"z_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      4,
    "rows" :   1000},

{">>>pipeline": [{"$match":{"a_compound":{"$elemMatch":{"$nin":[1,5]}},"c_idx":{"$nin":[12,19]},"z_idx":{"$ne":20}}},{"$sort":{"a_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"a_compound":{"$in":[7,1]}}},{"$sort":{"a_idx":1}},{"$project":{"a_idx":1,"a_noidx":1,"i_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      3,
    "rows" :  50895},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[6,18,11]}},{"a_noidx":{"$nin":[6,17,8,7]}}],"c_idx":{"$in":[3,1,19]}}},{"$sort":{"d_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"d_idx_1","indexBounds":{"d_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     10,
    "rows" :  30934},

{">>>pipeline": [{"$match":{"a_idx":{"$lte":3},"i_compound":{"$exists":true}}},{"$sort":{"a_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      4,
    "rows" :  92730},

{">>>pipeline": [{"$match":{"a_compound":{"$gt":16},"a_noidx":{"$elemMatch":{"$exists":true}},"z_compound":{"$ne":17}}},{"$sort":{"k_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :  99983},

{">>>pipeline": [{"$match":{"$and":[{"d_noidx":{"$nin":[12,14]}},{"c_idx":{"$exists":true}},{"c_idx":{"$exists":true}}],"d_compound":{"$ne":10},"i_compound":{"$nin":[11,4,7]},"z_compound":{"$ne":18}}},{"$sort":{"a_idx":-1}},{"$project":{"a_compound":1,"a_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      8,
    "rows" :  99997},

{">>>pipeline": [{"$match":{"$nor":[{"k_idx":{"$exists":false}},{"$nor":[{"a_compound":{"$ne":12}},{"d_compound":{"$exists":true}}]}],"a_compound":{"$nin":[16,13]}}},{"$sort":{"c_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      8,
    "rows" :  98000},

{">>>pipeline": [{"$match":{"$and":[{"a_noidx":{"$in":[6,14]}},{"d_compound":{"$exists":true}},{"a_compound":{"$gte":5}}]}},{"$sort":{"k_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :  11864},

{">>>pipeline": [{"$match":{"a_compound":{"$elemMatch":{"$exists":true,"$gte":19}},"z_compound":{"$exists":true}}},{"$sort":{"a_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :  99981},

{">>>pipeline": [{"$match":{"a_compound":{"$in":[2,1,20]},"z_idx":{"$nin":[7,8,11,12,18]}}},{"$sort":{"i_idx":1,"k_idx":1}},{"$limit":219},{"$project":{"a_idx":1,"i_noidx":1,"k_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[1.0, 1.0]","[2.0, 2.0]","[20.0, 20.0]"]}}}}},
    "keys" :  84300,
    "docs" :  76564,
    "sorts": 488675,
    "plans":      3,
    "rows" :    219},

{">>>pipeline": [{"$match":{"a_compound":{"$lte":6},"a_idx":{"$elemMatch":{"$lte":2}}}},{"$sort":{"i_idx":-1}},{"$project":{"a_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      4,
    "rows" :  79322},

{">>>pipeline": [{"$match":{"$nor":[{"i_idx":{"$in":[2,13]}},{"k_compound":{"$lt":14}}],"a_compound":{"$gt":7},"h_idx":{"$gte":10}}},{"$sort":{"a_idx":1}},{"$project":{"a_noidx":1,"c_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      7,
    "rows" :  89600},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$nin":[19,12,9]}},{"a_compound":{"$elemMatch":{"$lt":11}}}]}},{"$sort":{"z_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :  88987},

{">>>pipeline": [{"$match":{"$or":[{"$and":[{"a_compound":{"$all":[5,3]}},{"h_idx":{"$eq":13}},{"z_compound":{"$in":[12,18]}}]},{"c_compound":{"$exists":false}},{"z_idx":{"$ne":13}}],"i_idx":{"$gte":16},"i_noidx":{"$nin":[12,11]}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[16.0, inf]"]}}},
    "keys" :  99984,
    "docs" :  99984,
    "sorts":      0,
    "plans":      9,
    "rows" :  99984},

{">>>pipeline": [{"$match":{"$nor":[{"z_noidx":{"$in":[8,12,8]}},{"a_compound":{"$all":[17,4]}}],"a_idx":{"$exists":true}}},{"$sort":{"a_idx":-1}},{"$limit":165}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}}},
    "keys" :    165,
    "docs" :    165,
    "sorts":      0,
    "plans":      5,
    "rows" :    165},

{">>>pipeline": [{"$match":{"$nor":[{"a_noidx":{"$elemMatch":{"$in":[4,14,9]}}},{"i_idx":{"$exists":false}},{"i_compound":{"$lte":9}}],"a_compound":{"$lt":14}}},{"$sort":{"a_idx":-1}},{"$project":{"_id":0,"a_idx":1,"a_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      6,
    "rows" :  73661},

{">>>pipeline": [{"$match":{"$nor":[{"a_compound":{"$all":[14,2]}},{"a_noidx":{"$gt":3}}],"a_noidx":{"$in":[12,2]}}},{"$sort":{"a_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :      2},

{">>>pipeline": [{"$match":{"k_compound":{"$gt":10},"z_compound":{"$in":[13,1,2]}}},{"$sort":{"i_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :  69609},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$lte":15}},{"a_idx":{"$nin":[11,7,18,3]}},{"a_noidx":{"$lte":19}}],"c_idx":{"$exists":true}}},{"$sort":{"h_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      5,
    "rows" :  64022},

{">>>pipeline": [{"$match":{"$and":[{"i_compound":{"$exists":true}},{"c_compound":{"$ne":10}},{"k_idx":{"$gte":2}}]}},{"$sort":{"c_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"c_idx_1","indexBounds":{"c_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      6,
    "rows" :  99800},

{">>>pipeline": [{"$match":{"a_compound":{"$lt":5},"k_noidx":{"$nin":[10,1,10,9]}}},{"$sort":{"a_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      3,
    "rows" :  97576},

{">>>pipeline": [{"$match":{"$and":[{"a_compound":{"$nin":[5,17,6]}},{"k_noidx":{"$ne":2}}],"h_compound":{"$gte":11}}},{"$sort":{"k_idx":-1}},{"$project":{"a_idx":1,"z_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      4,
    "rows" :  67353},

{">>>pipeline": [{"$match":{"$nor":[{"$nor":[{"h_compound":{"$lt":10}},{"c_noidx":{"$exists":true}}]},{"c_compound":{"$exists":false}},{"i_idx":{"$in":[7,16,18]}}],"d_idx":{"$nin":[2,17]}}},{"$sort":{"a_idx":1}},{"$limit":80},{"$project":{"_id":0,"a_noidx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" :     80,
    "docs" :     80,
    "sorts":      0,
    "plans":      5,
    "rows" :     80},

{">>>pipeline": [{"$match":{"a_compound":{"$lte":11},"i_idx":{"$ne":4},"k_compound":{"$gt":3}}},{"$sort":{"i_idx":-1}},{"$project":{"_id":0,"h_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MaxKey, 4.0)","(4.0, MinKey]"]}}}},
    "keys" : 100000,
    "docs" :  99999,
    "sorts":      0,
    "plans":      5,
    "rows" :  99599},

{">>>pipeline": [{"$match":{"a_compound":{"$nin":[10,17]},"h_noidx":{"$nin":[6,1,6,1]},"i_idx":{"$gt":17}}},{"$sort":{"a_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      4,
    "rows" :  95980},

{">>>pipeline": [{"$match":{"a_compound":{"$in":[2,12]},"h_idx":{"$lt":16}}},{"$sort":{"h_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_idx_1","indexBounds":{"h_idx":["(16.0, -inf]"]}}},
    "keys" :  16000,
    "docs" :  16000,
    "sorts":      0,
    "plans":      3,
    "rows" :   6550},

{">>>pipeline": [{"$match":{"$nor":[{"k_compound":{"$in":[17,7]}},{"h_compound":{"$exists":false}}],"z_noidx":{"$exists":true}}},{"$sort":{"z_idx":-1}},{"$project":{"a_idx":1,"h_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      4,
    "rows" :  99800},

{">>>pipeline": [{"$match":{"$and":[{"$nor":[{"$and":[{"a_compound":{"$exists":true}},{"a_idx":{"$in":[13,3]}}]},{"c_idx":{"$gt":9}}]},{"d_compound":{"$lt":18}},{"k_idx":{"$gt":12}}]}},{"$sort":{"k_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[inf, 12.0)"]}}},
    "keys" :  98700,
    "docs" :  98700,
    "sorts":      0,
    "plans":      6,
    "rows" :  73235},

{">>>pipeline": [{"$match":{"$and":[{"a_idx":{"$nin":[3,15,13]}},{"a_compound":{"$elemMatch":{"$nin":[17,10,18]}}}]}},{"$sort":{"i_idx":-1}},{"$project":{"_id":0,"a_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_idx_1","indexBounds":{"i_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      4,
    "rows" :  73384},

{">>>pipeline": [{"$match":{"$nor":[{"k_noidx":{"$nin":[13,14]}},{"$nor":[{"c_compound":{"$nin":[8,10]}},{"a_idx":{"$all":[1,14,18,6]}},{"d_compound":{"$eq":17}},{"a_idx":{"$lte":9}}]}],"h_compound":{"$exists":true}}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"h_compound_1","indexBounds":{"h_compound":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":     11,
    "rows" :    200},

{">>>pipeline": [{"$match":{"a_compound":{"$elemMatch":{"$lt":18}},"a_noidx":{"$in":[17,13,16,6,8,3,3]}}},{"$sort":{"k_idx":-1}},{"$project":{"z_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      3,
    "rows" :  43792},

{">>>pipeline": [{"$match":{"a_idx":{"$in":[4,1,13]},"d_compound":{"$lt":10},"k_compound":{"$gt":16}}},{"$sort":{"k_idx":1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["[MinKey, MaxKey]"]}}},
    "keys" : 100000,
    "docs" : 100000,
    "sorts":      0,
    "plans":      6,
    "rows" :  56506},

{">>>pipeline": [{"$match":{"a_compound":{"$gt":4},"h_noidx":{"$nin":[13,11,19]},"z_idx":{"$in":[11,1,2,3]}}},{"$project":{"a_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_idx_1","indexBounds":{"z_idx":["[1.0, 1.0]","[2.0, 2.0]","[3.0, 3.0]","[11.0, 11.0]"]}}}},
    "keys" :  87894,
    "docs" :  87893,
    "sorts":      0,
    "plans":      3,
    "rows" :  85211},

{">>>pipeline": [{"$match":{"$and":[{"k_idx":{"$lt":12}},{"$or":[{"a_compound":{"$elemMatch":{"$in":[16,7],"$nin":[20,2]}}},{"z_idx":{"$eq":16}},{"a_compound":{"$in":[3,17]}}]},{"z_idx":{"$in":[14,3,16]}}]}},{"$sort":{"k_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_idx_1","indexBounds":{"k_idx":["(12.0, -inf]"]}}},
    "keys" :   1200,
    "docs" :   1200,
    "sorts":      0,
    "plans":      6,
    "rows" :    218},

{">>>pipeline": [{"$match":{"$and":[{"c_compound":{"$exists":true}},{"k_noidx":{"$in":[19,7,12,20]}},{"a_idx":{"$exists":true}}]}},{"$sort":{"a_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      3,
    "rows" :    400},

{">>>pipeline": [{"$match":{"$nor":[{"i_noidx":{"$exists":false}},{"z_idx":{"$gt":2}}],"d_compound":{"$gt":2}}},{"$sort":{"a_idx":-1}}],
    "winningPlan": {"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      4,
    "rows" :  49322},

{">>>pipeline": [{"$match":{"c_compound":{"$nin":[11,10]},"d_compound":{"$nin":[2,14,17,11]}}},{"$skip":20},{"$project":{"_id":0,"a_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","inputStage":{"stage":"SKIP","inputStage":{"stage":"IXSCAN","indexName":"c_compound_1_d_compound_1","indexBounds":{"c_compound":["[MinKey, 10.0)","(10.0, 11.0)","(11.0, MaxKey]"],"d_compound":["[MinKey, 2.0)","(2.0, 11.0)","(11.0, 14.0)","(14.0, 17.0)","(17.0, MaxKey]"]}}}}},
    "keys" :  90001,
    "docs" :  89980,
    "sorts":      0,
    "plans":      4,
    "rows" :  89980},

{">>>pipeline": [{"$match":{"$and":[{"i_compound":{"$lte":16}},{"a_compound":{"$all":[10,1]}}],"a_noidx":{"$elemMatch":{"$in":[12,4,1]}}}},{"$limit":93},{"$project":{"a_idx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1_i_compound_1","indexBounds":{"a_compound":["[10.0, 10.0]"],"i_compound":["[-inf, 16.0]"]}}}}},
    "keys" :      1,
    "docs" :      1,
    "sorts":      0,
    "plans":      7,
    "rows" :      1},

{">>>pipeline": [{"$match":{"i_compound":{"$nin":[18,17]},"z_compound":{"$nin":[2,2,11,17]}}},{"$skip":29}],
    "winningPlan": {"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_compound_1","indexBounds":{"z_compound":["[MinKey, 2.0)","(2.0, 11.0)","(11.0, 17.0)","(17.0, MaxKey]"]}}}},
    "keys" :  68048,
    "docs" :  68046,
    "sorts":      0,
    "plans":      4,
    "rows" :  68016},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$elemMatch":{"$gte":4}}},{"h_idx":{"$exists":false}},{"a_idx":{"$all":[13,10]}}]}},{"$sort":{"a_idx":1}},{"$skip":18}],
    "winningPlan": {"stage":"SUBPLAN","inputStage":{"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      4,
    "rows" :  99978},

{">>>pipeline": [{"$match":{"c_compound":{"$nin":[8,19,18,4]},"z_compound":{"$lte":10}}},{"$limit":127},{"$skip":29}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","inputStage":{"stage":"SKIP","inputStage":{"stage":"IXSCAN","indexName":"z_compound_1_c_compound_1","indexBounds":{"z_compound":["[-inf, 10.0]"],"c_compound":["[MinKey, 4.0)","(4.0, 8.0)","(8.0, 18.0)","(18.0, 19.0)","(19.0, MaxKey]"]}}}}},
    "keys" :    127,
    "docs" :     98,
    "sorts":      0,
    "plans":      4,
    "rows" :     98},

{">>>pipeline": [{"$match":{"c_compound":{"$nin":[5,12,3]},"z_compound":{"$nin":[19,18,16]}}},{"$limit":178},{"$skip":14},{"$project":{"_id":0,"k_idx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","inputStage":{"stage":"SKIP","inputStage":{"stage":"IXSCAN","indexName":"z_compound_1_c_compound_1","indexBounds":{"z_compound":["[MinKey, 16.0)","(16.0, 18.0)","(18.0, 19.0)","(19.0, MaxKey]"],"c_compound":["[MinKey, 3.0)","(3.0, 5.0)","(5.0, 12.0)","(12.0, MaxKey]"]}}}}}},
    "keys" :    178,
    "docs" :    164,
    "sorts":      0,
    "plans":      4,
    "rows" :    164},

{">>>pipeline": [{"$match":{"$or":[{"a_idx":{"$all":[8,4,12,8]}},{"a_compound":{"$all":[11,3]}},{"a_compound":{"$exists":false}},{"i_compound":{"$exists":true}}]}},{"$sort":{"a_idx":1}}],
    "winningPlan": {"stage":"SUBPLAN","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":     10,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"$or":[{"$nor":[{"h_idx":{"$exists":true}},{"$or":[{"k_noidx":{"$nin":[19,14,9]}},{"i_noidx":{"$exists":false}}]},{"k_idx":{"$exists":false}},{"a_noidx":{"$lt":13}},{"i_noidx":{"$nin":[12,10]}}]},{"a_idx":{"$elemMatch":{"$gte":12}}}]}},{"$sort":{"a_idx":-1}},{"$limit":210},{"$skip":31}],
    "winningPlan": {"stage":"SUBPLAN","inputStage":{"stage":"LIMIT","inputStage":{"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}}}}},
    "keys" :    210,
    "docs" :    210,
    "sorts":      0,
    "plans":      3,
    "rows" :    179},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$in":[19,6]}},{"a_compound":{"$elemMatch":{"$gte":18,"$nin":[4,14,18,19,18,18]}}},{"a_compound":{"$all":[12,6,11]}}]}},{"$sort":{"a_idx":-1}}],
    "winningPlan": {"stage":"SUBPLAN","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":     10,
    "rows" :  99983},

{">>>pipeline": [{"$match":{"c_compound":{"$lt":9}}},{"$limit":214},{"$skip":64}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","inputStage":{"stage":"SKIP","inputStage":{"stage":"IXSCAN","indexName":"c_compound_1","indexBounds":{"c_compound":["[-inf, 9.0)"]}}}}},
    "keys" :    214,
    "docs" :    150,
    "sorts":      0,
    "plans":      2,
    "rows" :    150},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$all":[6,3]}},{"a_compound":{"$elemMatch":{"$in":[4,1]}}}]}},{"$sort":{"a_idx":-1}},{"$limit":186},{"$project":{"c_noidx":1,"h_noidx":1,"z_idx":1}}],
    "winningPlan": {"stage":"SUBPLAN","inputStage":{"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}}}}},
    "keys" :    309,
    "docs" :    309,
    "sorts":      0,
    "plans":     10,
    "rows" :    186},

{">>>pipeline": [{"$match":{"c_compound":{"$ne":15},"d_compound":{"$nin":[18,8,18,3,11]}}},{"$skip":22}],
    "winningPlan": {"stage":"FETCH","inputStage":{"stage":"SKIP","inputStage":{"stage":"IXSCAN","indexName":"c_compound_1_d_compound_1","indexBounds":{"c_compound":["[MinKey, 15.0)","(15.0, MaxKey]"],"d_compound":["[MinKey, 3.0)","(3.0, 8.0)","(8.0, 11.0)","(11.0, 18.0)","(18.0, MaxKey]"]}}}},
    "keys" :  80002,
    "docs" :  79978,
    "sorts":      0,
    "plans":      4,
    "rows" :  79978},

{">>>pipeline": [{"$match":{"a_compound":{"$eq":10},"i_compound":{"$eq":10}}},{"$limit":214},{"$project":{"i_idx":1,"k_compound":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","inputStage":{"stage":"IXSCAN","indexName":"a_compound_1_i_compound_1","indexBounds":{"a_compound":["[10.0, 10.0]"],"i_compound":["[10.0, 10.0]"]}}}}},
    "keys" :      1,
    "docs" :      1,
    "sorts":      0,
    "plans":      4,
    "rows" :      1},

{">>>pipeline": [{"$match":{"k_compound":{"$gt":20}}},{"$skip":21}],
    "winningPlan": {"stage":"FETCH","inputStage":{"stage":"SKIP","inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["(20.0, inf]"]}}}},
    "keys" :  97900,
    "docs" :  97879,
    "sorts":      0,
    "plans":      2,
    "rows" :  97879},

{">>>pipeline": [{"$match":{"i_compound":{"$ne":15},"z_compound":{"$nin":[6,7]}}},{"$skip":12},{"$project":{"_id":0,"a_compound":1,"h_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"z_compound_1","indexBounds":{"z_compound":["[MinKey, 6.0)","(6.0, 7.0)","(7.0, MaxKey]"]}}}}},
    "keys" :  98745,
    "docs" :  98743,
    "sorts":      0,
    "plans":      4,
    "rows" :  98730},

{">>>pipeline": [{"$match":{"a_compound":{"$gt":16},"k_compound":{"$gte":3}}},{"$limit":33},{"$skip":29},{"$project":{"_id":0,"a_noidx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","inputStage":{"stage":"SKIP","inputStage":{"stage":"IXSCAN","indexName":"k_compound_1_a_compound_1","indexBounds":{"k_compound":["[3.0, inf]"],"a_compound":["(16.0, inf]"]}}}}}},
    "keys" :     33,
    "docs" :      4,
    "sorts":      0,
    "plans":      4,
    "rows" :      4},

{">>>pipeline": [{"$match":{"$and":[{"d_idx":{"$lte":20}},{"k_compound":{"$in":[17,16,14]}},{"a_compound":{"$elemMatch":{"$in":[14,18],"$lt":15}}}],"a_compound":{"$exists":true}}},{"$sort":{"d_idx":1}},{"$project":{"a_noidx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1_a_compound_1","indexBounds":{"k_compound":["[14.0, 14.0]","[16.0, 16.0]","[17.0, 17.0]"],"a_compound":["[14.0, 14.0]"]}}}}},
    "keys" :    105,
    "docs" :    100,
    "sorts":    561,
    "plans":      7,
    "rows" :    100},

{">>>pipeline": [{"$match":{"$and":[{"k_compound":{"$gt":14}},{"a_compound":{"$lte":13}}]}},{"$skip":59},{"$project":{"_id":0,"a_idx":1,"i_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["(14.0, inf]"]}}}}},
    "keys" :  98500,
    "docs" :  98500,
    "sorts":      0,
    "plans":      4,
    "rows" :  98441},

{">>>pipeline": [{"$match":{"a_compound":{"$gt":17},"i_compound":{"$nin":[6,17,14]}}},{"$limit":201},{"$skip":12},{"$project":{"c_compound":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","inputStage":{"stage":"SKIP","inputStage":{"stage":"IXSCAN","indexName":"a_compound_1_i_compound_1","indexBounds":{"a_compound":["(17.0, inf]"],"i_compound":["[MinKey, 6.0)","(6.0, 14.0)","(14.0, 17.0)","(17.0, MaxKey]"]}}}}}},
    "keys" :    201,
    "docs" :    189,
    "sorts":      0,
    "plans":      4,
    "rows" :    189},

{">>>pipeline": [{"$match":{"a_compound":{"$all":[2,11]},"i_compound":{"$lte":11}}},{"$sort":{"a_idx":1,"i_idx":-1}},{"$limit":46}],
    "winningPlan": {"stage":"SORT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1_i_compound_1","indexBounds":{"a_compound":["[11.0, 11.0]"],"i_compound":["[-inf, 11.0]"]}}}},
    "keys" :      1,
    "docs" :      1,
    "sorts":      1,
    "plans":      7,
    "rows" :      1},

{">>>pipeline": [{"$match":{"z_compound":{"$nin":[1,16]}}},{"$limit":58},{"$project":{"_id":0,"z_compound":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_COVERED","inputStage":{"stage":"IXSCAN","indexName":"z_compound_1","indexBounds":{"z_compound":["[MinKey, 1.0)","(1.0, 16.0)","(16.0, MaxKey]"]}}}},
    "keys" :     59,
    "docs" :      0,
    "sorts":      0,
    "plans":      2,
    "rows" :     58},

{">>>pipeline": [{"$match":{"a_compound":{"$gt":19}}},{"$limit":165},{"$skip":6}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","inputStage":{"stage":"SKIP","inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["(19.0, inf]"]}}}}},
    "keys" :    165,
    "docs" :    159,
    "sorts":      0,
    "plans":      2,
    "rows" :    159},

{">>>pipeline": [{"$match":{"d_compound":{"$lt":6}}},{"$skip":4}],
    "winningPlan": {"stage":"FETCH","inputStage":{"stage":"SKIP","inputStage":{"stage":"IXSCAN","indexName":"d_compound_1","indexBounds":{"d_compound":["[-inf, 6.0)"]}}}},
    "keys" :  60000,
    "docs" :  59996,
    "sorts":      0,
    "plans":      2,
    "rows" :  59996},

{">>>pipeline": [{"$match":{"$nor":[{"a_idx":{"$gt":15}},{"d_compound":{"$in":[7,17]}},{"i_compound":{"$nin":[6,9,17,12,4]}}],"a_compound":{"$in":[12,13]}}},{"$limit":248}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1_i_compound_1","indexBounds":{"a_compound":["[12.0, 12.0]","[13.0, 13.0]"],"i_compound":["[4.0, 4.0]","[6.0, 6.0]","[9.0, 9.0]","[12.0, 12.0]","[17.0, 17.0]"]}}}},
    "keys" :      4,
    "docs" :      1,
    "sorts":      0,
    "plans":      7,
    "rows" :      1},

{">>>pipeline": [{"$match":{"c_compound":{"$lte":9},"z_compound":{"$in":[2,14,6]}}},{"$skip":5}],
    "winningPlan": {"stage":"FETCH","inputStage":{"stage":"SKIP","inputStage":{"stage":"IXSCAN","indexName":"z_compound_1_c_compound_1","indexBounds":{"z_compound":["[2.0, 2.0]","[6.0, 6.0]","[14.0, 14.0]"],"c_compound":["[-inf, 9.0]"]}}}},
    "keys" :  32925,
    "docs" :  32918,
    "sorts":      0,
    "plans":      4,
    "rows" :  32918},

{">>>pipeline": [{"$match":{"d_compound":{"$gte":7}}},{"$skip":14}],
    "winningPlan": {"stage":"FETCH","inputStage":{"stage":"SKIP","inputStage":{"stage":"IXSCAN","indexName":"d_compound_1","indexBounds":{"d_compound":["[7.0, inf]"]}}}},
    "keys" :  30000,
    "docs" :  29986,
    "sorts":      0,
    "plans":      2,
    "rows" :  29986},

{">>>pipeline": [{"$match":{"$and":[{"a_noidx":{"$elemMatch":{"$lt":12}}},{"$and":[{"i_compound":{"$eq":3}},{"z_compound":{"$in":[15,2]}}]}],"a_noidx":{"$in":[3,10,12]}}},{"$limit":29}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"i_compound_1_z_compound_1","indexBounds":{"i_compound":["[3.0, 3.0]"],"z_compound":["[2.0, 2.0]","[15.0, 15.0]"]}}}},
    "keys" :      1,
    "docs" :      0,
    "sorts":      0,
    "plans":      4,
    "rows" :      0},

{">>>pipeline": [{"$match":{"i_compound":{"$gt":13}}},{"$limit":252},{"$skip":45}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","inputStage":{"stage":"SKIP","inputStage":{"stage":"IXSCAN","indexName":"i_compound_1","indexBounds":{"i_compound":["(13.0, inf]"]}}}}},
    "keys" :    252,
    "docs" :    207,
    "sorts":      0,
    "plans":      2,
    "rows" :    207},

{">>>pipeline": [{"$match":{"$or":[{"$or":[{"a_compound":{"$all":[11,8,15]}},{"a_compound":{"$all":[7,20,19]}}]},{"a_idx":{"$elemMatch":{"$gt":10}}},{"a_idx":{"$in":[7,9,12]}}]}},{"$sort":{"a_idx":1}},{"$skip":28}],
    "winningPlan": {"stage":"SUBPLAN","inputStage":{"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":     10,
    "rows" :  99963},

{">>>pipeline": [{"$match":{"$nor":[{"$and":[{"$and":[{"k_idx":{"$nin":[8,15,6]}},{"a_noidx":{"$elemMatch":{"$exists":false}}},{"a_noidx":{"$exists":true}},{"a_noidx":{"$elemMatch":{"$exists":true}}},{"a_compound":{"$elemMatch":{"$exists":true}}}]},{"a_idx":{"$all":[11,6,8]}}]},{"k_compound":{"$in":[13,2,9]}}],"a_compound":{"$all":[20,2,20]},"i_compound":{"$in":[17,20]}}},{"$project":{"_id":0,"i_idx":1}}],
    "winningPlan": {"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_compound_1_i_compound_1","indexBounds":{"a_compound":["[20.0, 20.0]"],"i_compound":["[17.0, 17.0]","[20.0, 20.0]"]}}}},
    "keys" :      2,
    "docs" :      1,
    "sorts":      0,
    "plans":      9,
    "rows" :      1},

{">>>pipeline": [{"$match":{"i_compound":{"$in":[17,15,7]}}},{"$limit":175},{"$skip":1},{"$project":{"a_compound":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","inputStage":{"stage":"SKIP","inputStage":{"stage":"IXSCAN","indexName":"i_compound_1","indexBounds":{"i_compound":["[7.0, 7.0]","[15.0, 15.0]","[17.0, 17.0]"]}}}}}},
    "keys" :      6,
    "docs" :      2,
    "sorts":      0,
    "plans":      2,
    "rows" :      2},

{">>>pipeline": [{"$match":{"a_compound":{"$in":[20,15,20]},"i_compound":{"$gte":5}}},{"$limit":237},{"$skip":1},{"$project":{"_id":0,"i_noidx":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","inputStage":{"stage":"SKIP","inputStage":{"stage":"IXSCAN","indexName":"a_compound_1_i_compound_1","indexBounds":{"a_compound":["[15.0, 15.0]","[20.0, 20.0]"],"i_compound":["[5.0, inf]"]}}}}}},
    "keys" :    237,
    "docs" :    236,
    "sorts":      0,
    "plans":      4,
    "rows" :    236},

{">>>pipeline": [{"$match":{"c_compound":{"$lte":9}}},{"$project":{"_id":0,"c_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_COVERED","inputStage":{"stage":"IXSCAN","indexName":"c_compound_1","indexBounds":{"c_compound":["[-inf, 9.0]"]}}},
    "keys" : 100000,
    "docs" :      0,
    "sorts":      0,
    "plans":      2,
    "rows" : 100000},

{">>>pipeline": [{"$match":{"a_compound":{"$in":[6,13]}}},{"$skip":10}],
    "winningPlan": {"stage":"FETCH","inputStage":{"stage":"SKIP","inputStage":{"stage":"IXSCAN","indexName":"a_compound_1","indexBounds":{"a_compound":["[6.0, 6.0]","[13.0, 13.0]"]}}}},
    "keys" :  11875,
    "docs" :  11855,
    "sorts":      0,
    "plans":      2,
    "rows" :  11855},

{">>>pipeline": [{"$match":{"a_compound":{"$eq":9}}},{"$limit":123},{"$project":{"_id":0,"i_compound":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_COVERED","inputStage":{"stage":"IXSCAN","indexName":"a_compound_1_i_compound_1","indexBounds":{"a_compound":["[9.0, 9.0]"],"i_compound":["[MinKey, MaxKey]"]}}}},
    "keys" :    123,
    "docs" :      0,
    "sorts":      0,
    "plans":      2,
    "rows" :    123},

{">>>pipeline": [{"$match":{"d_compound":{"$nin":[2,1]}}},{"$project":{"_id":0,"k_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_COVERED","inputStage":{"stage":"IXSCAN","indexName":"d_compound_1_k_compound_1","indexBounds":{"d_compound":["[MinKey, 1.0)","(1.0, 2.0)","(2.0, MaxKey]"],"k_compound":["[MinKey, MaxKey]"]}}},
    "keys" :  80002,
    "docs" :      0,
    "sorts":      0,
    "plans":      2,
    "rows" :  80000},

{">>>pipeline": [{"$match":{"$or":[{"k_compound":{"$exists":true}},{"a_idx":{"$all":[7,4]}}]}},{"$sort":{"a_idx":-1}},{"$limit":196},{"$skip":19},{"$project":{"_id":0,"i_noidx":1}}],
    "winningPlan": {"stage":"SUBPLAN","inputStage":{"stage":"LIMIT","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MaxKey, MinKey]"]}}}}}}},
    "keys" :    196,
    "docs" :    196,
    "sorts":      0,
    "plans":      7,
    "rows" :    177},

{">>>pipeline": [{"$match":{"i_compound":{"$lte":14}}},{"$limit":43},{"$skip":11}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"FETCH","inputStage":{"stage":"SKIP","inputStage":{"stage":"IXSCAN","indexName":"i_compound_1","indexBounds":{"i_compound":["[-inf, 14.0]"]}}}}},
    "keys" :     15,
    "docs" :      4,
    "sorts":      0,
    "plans":      2,
    "rows" :      4},

{">>>pipeline": [{"$match":{"d_compound":{"$eq":5}}},{"$skip":5}],
    "winningPlan": {"stage":"FETCH","inputStage":{"stage":"SKIP","inputStage":{"stage":"IXSCAN","indexName":"d_compound_1","indexBounds":{"d_compound":["[5.0, 5.0]"]}}}},
    "keys" :  10000,
    "docs" :   9995,
    "sorts":      0,
    "plans":      2,
    "rows" :   9995},

{">>>pipeline": [{"$match":{"k_compound":{"$gte":11}}},{"$skip":68},{"$project":{"_id":0,"k_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_COVERED","inputStage":{"stage":"SKIP","inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[11.0, inf]"]}}}},
    "keys" :  98900,
    "docs" :      0,
    "sorts":      0,
    "plans":      2,
    "rows" :  98832},

{">>>pipeline": [{"$match":{"i_compound":{"$lt":16}}},{"$skip":12}],
    "winningPlan": {"stage":"FETCH","inputStage":{"stage":"SKIP","inputStage":{"stage":"IXSCAN","indexName":"i_compound_1","indexBounds":{"i_compound":["[-inf, 16.0)"]}}}},
    "keys" :     16,
    "docs" :      4,
    "sorts":      0,
    "plans":      2,
    "rows" :      4},

{">>>pipeline": [{"$match":{"k_compound":{"$eq":8}}},{"$project":{"_id":0,"k_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_COVERED","inputStage":{"stage":"IXSCAN","indexName":"k_compound_1","indexBounds":{"k_compound":["[8.0, 8.0]"]}}},
    "keys" :    100,
    "docs" :      0,
    "sorts":      0,
    "plans":      2,
    "rows" :    100},

{">>>pipeline": [{"$match":{"a_compound":{"$gt":1}}},{"$limit":122},{"$project":{"_id":0,"i_compound":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_COVERED","inputStage":{"stage":"IXSCAN","indexName":"a_compound_1_i_compound_1","indexBounds":{"a_compound":["(1.0, inf]"],"i_compound":["[MinKey, MaxKey]"]}}}},
    "keys" :    122,
    "docs" :      0,
    "sorts":      0,
    "plans":      2,
    "rows" :    122},

{">>>pipeline": [{"$match":{"z_compound":{"$ne":11}}},{"$skip":73},{"$project":{"_id":0,"z_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_COVERED","inputStage":{"stage":"SKIP","inputStage":{"stage":"IXSCAN","indexName":"z_compound_1","indexBounds":{"z_compound":["[MinKey, 11.0)","(11.0, MaxKey]"]}}}},
    "keys" :  99997,
    "docs" :      0,
    "sorts":      0,
    "plans":      2,
    "rows" :  99923},

{">>>pipeline": [{"$match":{"a_compound":{"$in":[3,15]}}},{"$limit":242},{"$project":{"_id":0,"i_compound":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_COVERED","inputStage":{"stage":"IXSCAN","indexName":"a_compound_1_i_compound_1","indexBounds":{"a_compound":["[3.0, 3.0]","[15.0, 15.0]"],"i_compound":["[MinKey, MaxKey]"]}}}},
    "keys" :    242,
    "docs" :      0,
    "sorts":      0,
    "plans":      2,
    "rows" :    242},

{">>>pipeline": [{"$match":{"d_compound":{"$in":[6,16,8,6]}}},{"$limit":204},{"$skip":17},{"$project":{"_id":0,"d_compound":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_COVERED","inputStage":{"stage":"SKIP","inputStage":{"stage":"IXSCAN","indexName":"d_compound_1","indexBounds":{"d_compound":["[6.0, 6.0]","[8.0, 8.0]","[16.0, 16.0]"]}}}}},
    "keys" :    204,
    "docs" :      0,
    "sorts":      0,
    "plans":      2,
    "rows" :    187},

{">>>pipeline": [{"$match":{"a_compound":{"$in":[10,12,18]}}},{"$limit":44},{"$project":{"_id":0,"i_compound":1}}],
    "winningPlan": {"stage":"LIMIT","inputStage":{"stage":"PROJECTION_COVERED","inputStage":{"stage":"IXSCAN","indexName":"a_compound_1_i_compound_1","indexBounds":{"a_compound":["[10.0, 10.0]","[12.0, 12.0]","[18.0, 18.0]"],"i_compound":["[MinKey, MaxKey]"]}}}},
    "keys" :     44,
    "docs" :      0,
    "sorts":      0,
    "plans":      2,
    "rows" :     44},

{">>>pipeline": [{"$match":{"$or":[{"$and":[{"i_compound":{"$nin":[9,3,7,20,6]}},{"$nor":[{"i_compound":{"$exists":false}},{"a_idx":{"$elemMatch":{"$exists":false}}}]},{"$or":[{"i_noidx":{"$in":[9,8]}},{"d_idx":{"$nin":[10,8,17]}}]}]},{"h_compound":{"$exists":false}},{"k_idx":{"$exists":false}}]}},{"$sort":{"a_idx":1}},{"$project":{"_id":0,"a_idx":1,"a_noidx":1,"k_compound":1,"z_compound":1}}],
    "winningPlan": {"stage":"SUBPLAN","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      3,
    "rows" :  89996},

{">>>pipeline": [{"$match":{"z_compound":{"$gt":3}}},{"$skip":2}],
    "winningPlan": {"stage":"FETCH","inputStage":{"stage":"SKIP","inputStage":{"stage":"IXSCAN","indexName":"z_compound_1","indexBounds":{"z_compound":["(3.0, inf]"]}}}},
    "keys" :  12111,
    "docs" :  12109,
    "sorts":      0,
    "plans":      2,
    "rows" :  12109},

{">>>pipeline": [{"$match":{"d_compound":{"$ne":1}}},{"$skip":60},{"$project":{"_id":0,"k_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_COVERED","inputStage":{"stage":"SKIP","inputStage":{"stage":"IXSCAN","indexName":"d_compound_1_k_compound_1","indexBounds":{"d_compound":["[MinKey, 1.0)","(1.0, MaxKey]"],"k_compound":["[MinKey, MaxKey]"]}}}},
    "keys" :  90001,
    "docs" :      0,
    "sorts":      0,
    "plans":      2,
    "rows" :  89940},

{">>>pipeline": [{"$match":{"d_compound":{"$lte":5}}},{"$project":{"_id":0,"k_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_COVERED","inputStage":{"stage":"IXSCAN","indexName":"d_compound_1_k_compound_1","indexBounds":{"d_compound":["[-inf, 5.0]"],"k_compound":["[MinKey, MaxKey]"]}}},
    "keys" :  60000,
    "docs" :      0,
    "sorts":      0,
    "plans":      2,
    "rows" :  60000},

{">>>pipeline": [{"$match":{"$or":[{"a_compound":{"$elemMatch":{"$exists":true,"$gte":10}}},{"a_idx":{"$elemMatch":{"$eq":3}}}]}},{"$sort":{"a_idx":1}},{"$skip":91},{"$project":{"a_compound":1}}],
    "winningPlan": {"stage":"SUBPLAN","inputStage":{"stage":"PROJECTION_SIMPLE","inputStage":{"stage":"SKIP","inputStage":{"stage":"FETCH","filter":true,"inputStage":{"stage":"IXSCAN","indexName":"a_idx_1","indexBounds":{"a_idx":["[MinKey, MaxKey]"]}}}}}},
    "keys" : 468941,
    "docs" : 100000,
    "sorts":      0,
    "plans":      3,
    "rows" :  99903},

{">>>pipeline": [{"$match":{"d_compound":{"$in":[7,10,7,2]}}},{"$project":{"_id":0,"k_compound":1}}],
    "winningPlan": {"stage":"PROJECTION_COVERED","inputStage":{"stage":"IXSCAN","indexName":"d_compound_1_k_compound_1","indexBounds":{"d_compound":["[2.0, 2.0]","[7.0, 7.0]","[10.0, 10.0]"],"k_compound":["[MinKey, MaxKey]"]}}},
    "keys" :  20002,
    "docs" :      0,
    "sorts":      0,
    "plans":      2,
    "rows" :  20000}
],
">>>totals": {"plans":  10502, "keys": 127854229, "docs": 61496402, "sorts": 69333836, "rows": 38209791, "errors":      0},
">>>parameters": {"planRankerMode":"multiPlanning","samplingMarginOfError":5,"samplingConfidenceInterval":"95","internalQuerySamplingCEMethod":"random"}}
