Explain Has Output With Matchcols = 0. What Does It Mean?

1.	Explain Has Output With Matchcols = 0. What Does It Mean?
Answer» A NON MATCHING INDEX SCAN if ACCESSTYPE = I. A non matching index scan if ACCESSTYPE = I.

Answer»

A NON MATCHING INDEX SCAN if ACCESSTYPE = I.

A non matching index scan if ACCESSTYPE = I.

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