Object.bsonsize(db.Likes.find({Id: HexData(3, "dfa2eae902cb324487e01b6ddd9de085")})) Object.bsonsize(db.Likes.find({Id: HexData(3, "248b85402e4f9e4591ad6375ff76dbef")})) return to me equals result: [image] but on first document i have nested array with 1 element , second nested array with 5 elem…

Hi @alexov_inbox , The db.collection.find() method returns a cursor which has to be iterated to get the results . Since it looks like you are trying to compare the size of individual documents, try using db.collection.findOne() instead (which returns a document instead of a cursor): Object.bsonsize…

Object.bsonsize dont work correct

Working with Data

alexov_inbox (Alexov Inbox) September 21, 2021, 1:23pm 3

yes its work ! thx !

it remains to deal with the fundamental problem