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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Scott Ribe <scott_ribe@elevated-dev.com>
cc: Pgsql-admin <pgsql-admin@lists.postgresql.org>
Subject: Re: regression in PG 15.1
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Comments: In-reply-to Scott Ribe <scott_ribe@elevated-dev.com>
	message dated "Mon, 28 Nov 2022 07:57:16 -0700"
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Date: Mon, 28 Nov 2022 10:15:50 -0500
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Scott Ribe <scott_ribe@elevated-dev.com> writes:
>> On Nov 28, 2022, at 7:44 AM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>> Why do you say this is a regression?  From what I know of the partition
>> pruning logic (admittedly not a whole lot), I don't think we'd have
>> ever pruned on the basis of such a constraint.

> Because performance of the query tanked.

Compared to what?  If you said something like "it worked as I expected
in Postgres x.y", that would be something to go on.

			regards, tom lane