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Answers and rating deltas for

How would I find documents based on whether a field exists AND another that doesn't, in MongoDB?

Author Votes Δ
Anushka Ahir 2 +4.05
Aakash Dusane 0 -0.05
Rajat Rastogi -1 -4.01
Last visited: May 11, 2019, 11:16:05 PM