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