one of my aggregation query using match (a,b), graphlookup and unwind has explain output with index being used (idx_a_1_b_1) shows keys & docs examined is 0 with docs returned is around 300. So, my question is why does the docs and keys examined are 0 event though documents are returned?

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Index used but keys & docs examined is 0 with docs returned is around 300

steevej (Steeve Juneau) September 7, 2023, 8:45pm 4

Please see