mongodb project all fields
db.collection.aggregate([
{ "$addFields": { "custom_field": "$obj.obj_field1" } }
])mongodb project all fields
db.collection.aggregate([
{ "$addFields": { "custom_field": "$obj.obj_field1" } }
])mongodb aggregate remove field
{ $project: { "<field1>": 0, "<field2>": 0, ... } } // Return all but the specified fieldsCopyright © 2021 Codeinu
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