Template
single collection
multiple collections
mgodatagen
update
indexe
explain
Stage
Database
bson
mgodatagen
[{"name":"Awesome post","user":{"_id":"1",}},{"name":"Awesome post","user":{"_id":"2",}},{"name":"Awesome post","user":{"_id":"3",}}]
Query
db.collection.find({"user._id":{"$ne":"2"}})
Result