Outputs Of Explain Are With Matchcols = 0. What Does This Signify?

1.	Outputs Of Explain Are With Matchcols = 0. What Does This Signify?
Answer» This SIGNIFIES a non-matching SCAN of INDEX PROVIDED that ACCESSTYPE = I This signifies a non-matching scan of index provided that ACCESSTYPE = I

Answer»

This SIGNIFIES a non-matching SCAN of INDEX PROVIDED that ACCESSTYPE = I

This signifies a non-matching scan of index provided that ACCESSTYPE = I

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