From: Bruce Momjian <bruce@momjian.us>
To: Michael Paquier <michael@paquier.xyz>
Cc: Peter Geoghegan <pg@bowt.ie>
Cc: Robert Haas <robertmhaas@gmail.com>
Cc: Alvaro Herrera <alvherre@alvh.no-ip.org>
Cc: Andres Freund <andres@anarazel.de>
Cc: Andrey Borodin <x4mmm@yandex-team.ru>
Cc: Петър Славов <pet.slavov@gmail.com>
Cc: PostgreSQL mailing lists <pgsql-bugs@lists.postgresql.org>
Subject: Re: BUG #17485: Records missing from Primary Key index when doing REINDEX INDEX CONCURRENTLY
Date: Thu, 26 May 2022 10:40:03 -0400
Message-ID: <Yo+RQ2wSZIP/ljtt@momjian.us> (raw)
In-Reply-To: <Yo72aOILTPjBldWU@paquier.xyz>
References: <CA+TgmoYP7BnHXTEoJRUnOuie2J05Qo8ti5mnE2u-1c4Hk+8zJw@mail.gmail.com>
<202205251643.2py5jjpaw7wy@alvherre.pgsql>
<CA+TgmobNBHAObYS1yeX6C+Ph3ccborF86t9XFERdvtmmu-5DMg@mail.gmail.com>
<CAH2-Wz=cDCzrfwm8YYF4vd8oMNJtVRh+_BbCqhCrKzX1NgXzQw@mail.gmail.com>
<Yo7xTUr3eNgxuBq4@momjian.us>
<Yo72aOILTPjBldWU@paquier.xyz>
On Thu, May 26, 2022 at 12:39:20PM +0900, Michael Paquier wrote:
> On Wed, May 25, 2022 at 11:17:33PM -0400, Bruce Momjian wrote:
> > * Caused by CREATE/REINDEX CONCURRENTLY
>
> Yes.
>
> > * No way to detect which indexes were created concurrently
> > * amcheck will be required to find corrupt indexes (options?)
>
> amcheck would help for btree, not the other AMs. I am not sure but
> there could be other symptoms that may not be detected by amcheck?
>
> > * Heap is fine, only index is corrupt
>
> Yes.
>
> > * Bug since PG 14
>
> 14.0, yes.
>
> > * Not known why reports are only appearing now
> > * Feature will likely need to be removed rather than fixed
>
> Trends go in this direction. It does not seem like there is a
> complete conclusion on this point, either.
Uh, if people don't know if they have used CREATE/REINDEX CONCURRENTLY
in PG 14.0+, they are going to need to run amcheck on all btree indexes
and reindex all non-btree indexes? That is going to be a painful
message to deliver, and hear. :-(
--
Bruce Momjian <bruce@momjian.us> https://momjian.us
EDB https://enterprisedb.com
Indecision is a decision. Inaction is an action. Mark Batterson
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Cc: bruce@momjian.us, michael@paquier.xyz, pg@bowt.ie, robertmhaas@gmail.com, alvherre@alvh.no-ip.org, andres@anarazel.de, x4mmm@yandex-team.ru, pet.slavov@gmail.com, pgsql-bugs@lists.postgresql.org
Subject: Re: BUG #17485: Records missing from Primary Key index when doing REINDEX INDEX CONCURRENTLY
In-Reply-To: <Yo+RQ2wSZIP/ljtt@momjian.us>
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