Template
single collection
multiple collections
mgodatagen
update
indexe
explain
Stage
Database
bson
mgodatagen
[{"user":{"_id":"65d0fd1aa10f95578e5c3c94","person_id":"65d0fd1aa10f95578e5c3c93","usesAgent":"false"}}]
Query
db.collection.aggregate([{$project:{"user.person_id":0}}])
Result