Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Pavan Deolasee <pavan(dot)deolasee(at)gmail(dot)com>
Cc: Tomas Vondra <tomas(dot)vondra(at)enterprisedb(dot)com>, Anastasia Lubennikova <a(dot)lubennikova(at)postgrespro(dot)ru>, Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com>, Tatsuo Ishii <ishii(at)sraoss(dot)co(dot)jp>, lubennikovaav(at)gmail(dot)com, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>, ibrar(dot)ahmad(at)gmail(dot)com
Subject: Re: COPY FREEZE and setting PD_ALL_VISIBLE/visibility map bits
Date: 2021-01-23 00:10:14
Message-ID: 1254689.1611360614@sss.pgh.pa.us
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Pavan Deolasee <pavan(dot)deolasee(at)gmail(dot)com> writes:
> On Mon, Jan 18, 2021 at 3:02 AM Tomas Vondra <tomas(dot)vondra(at)enterprisedb(dot)com>
> wrote:
>> Pushed. Thanks everyone for the effort put into this patch. The first
>> version was sent in 2015, so it took quite a bit of time.

> Thanks Tomas, Anastasia and everyone else who worked on the patch and
> ensured that it gets into the tree.

Buildfarm results suggest that the test case is unstable under
CLOBBER_CACHE_ALWAYS:

https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=hyrax&dt=2021-01-19%2020%3A27%3A46

This might mean an actual bug, or just that the test isn't robust.

regards, tom lane

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