Template
single collection
multiple collections
mgodatagen
update
indexe
explain
Stage
Database
bson
mgodatagen
[{"a":[{"p":[{"pid":{"CC":"A","SN":"1","KC":"B"}}]}]}]
Query
db.collection.find({"a.p.pid":{"CC":"A","KC":"B","SN":{"$in":["1","2","3"]}}})
Result