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Re: Use merge-based matching for MCVs in eqjoinsel - Mailing list pgsql-hackers

From Tom Lane
Subject Re: Use merge-based matching for MCVs in eqjoinsel
Date
Msg-id 903669.1756931186@sss.pgh.pa.us
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In response to Re: Use merge-based matching for MCVs in eqjoinsel  (Ilia Evdokimov <ilya.evdokimov@tantorlabs.com>)
Responses Re: Use merge-based matching for MCVs in eqjoinsel
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Ilia Evdokimov <ilya.evdokimov@tantorlabs.com> writes:
> I’ve attached v3 of the patch. This version adds a check for NULL values 
> when comparing MCV entries, ensuring correctness in edge cases.

Um ... what edge cases would those be?  We do not put NULL into
MCV arrays.

            regards, tom lane

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