Template
single collection
multiple collections
mgodatagen
update
indexe
explain
Stage
Database
bson
mgodatagen
[{"_id":1,"test_array":[1,2,3,5]},{"_id":2,"test_array":[4,5]},{"_id":3,"test_array":[1,2,3]}]
Query
db.collection.find({test_array:{$in:[4,5]}})
Result