Compare two date fields in MongoDB

Question

in my collection each document has 2 dates, modified and sync. I would like to find those which modified > sync, or sync does not exist.

I tried

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Answer 1

Right now your query is trying to return all results such that the modified field is greater than the word 'sync'. Try getting rid of the quotes around sync and see if that fixes anything. Otherwise, I did a little research and found this question. What you're trying to do just might not be possible in a single query, but you should be able to manipulate your data once you pull everything from the database.