How do change streams with fullDocument=updateLookup works?

Change stream send a new query to Mongo server for full document when set fullDocument:updateLookup?
How does it affect performance?


Welcome to MongoDB community!

The exact impact is hard to predict and it requires performance testing with ur data .

However, there is obviously an overhead to the operation as the full document must be lookedup as not all data is present in oplog for it


This topic was automatically closed 5 days after the last reply. New replies are no longer allowed.