From: Michael Paquier <michael@paquier.xyz>
To: Alvaro Herrera <alvherre@alvh.no-ip.org>
Cc: Andres Freund <andres@anarazel.de>
Cc: Andrey Borodin <x4mmm@yandex-team.ru>
Cc: Robert Haas <robertmhaas@gmail.com>
Cc: Peter Geoghegan <pg@bowt.ie>
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: Tue, 31 May 2022 21:03:17 +0900
Message-ID: <YpYEBdG59FJ8s0FI@paquier.xyz> (raw)
In-Reply-To: <202205310919.ziwjdn5e36nt@alvherre.pgsql>
References: <YpVzILvc0Uowuir8@paquier.xyz>
<202205310919.ziwjdn5e36nt@alvherre.pgsql>
On Tue, May 31, 2022 at 11:19:01AM +0200, Alvaro Herrera wrote:
> Hmm, I wonder if it's possible to use an index ON tab (pg_sleep(100ms))
> or something like that (perhaps even use an expresion involving an
> advisory lock acquisition, which is being held by the other session), to
> widen the window.
I have not considered the use of expressions to enforce a lock at this
stage. I'll give it a shot, even if it comes to the abuse of an
immutable function with volatile internals :)
> The stop events patch that A. Korotkov posted [0] would likely be very
> useful here.
>
> [0] https://postgr.es/m/CAPpHfdtSEOHX8dSk9Qp+Z++i4BGQoffKip6JDWngEA+g7Z-XmQ@mail.gmail.com
Thanks for the reference. I've wanted to resurrect this stuff,
actually, after dealing with 6dced63 to be able to have a stop point
in the middle of a restart point.
--
Michael
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To: pgsql-bugs@postgresql.org
Cc: michael@paquier.xyz, alvherre@alvh.no-ip.org, andres@anarazel.de, x4mmm@yandex-team.ru, robertmhaas@gmail.com, pg@bowt.ie, 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: <YpYEBdG59FJ8s0FI@paquier.xyz>
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