Template
single collection
multiple collections
mgodatagen
update
indexe
explain
Stage
Database
bson
mgodatagen
[{"_id":ObjectId("5fff1a4484e0d40a6e3b5712"),"mobile":"1234567890","Name1":"Test"},{"key":2}]
Query
db.collection.aggregate([{"$project":{"data":"$$ROOT"}}])
Result