Re: Proving IS NOT NULL inference for ScalarArrayOpExpr's

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: James Coleman <jtc331(at)gmail(dot)com>
Cc: David Rowley <david(dot)rowley(at)2ndquadrant(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Proving IS NOT NULL inference for ScalarArrayOpExpr's
Date: 2019-01-14 17:04:31
Message-ID: 27930.1547485471@sss.pgh.pa.us
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James Coleman <jtc331(at)gmail(dot)com> writes:
> Are those invariants we want to keep (and recognize as regression
> tests)? If so, I can confirm that they aren't duplicative of the rest
> of the file, and if not I can remove them.

I can't get terribly excited about them ... if we were changing their
behavior, or if there were a bug discovered here, then I'd think
differently. But I'm not a fan of adding regression test cycles
without a reason.

regards, tom lane

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