Re: HOT chain bug in latestRemovedXid calculation

From: Peter Geoghegan <pg(at)bowt(dot)ie>
To: PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Cc: Andres Freund <andres(at)anarazel(dot)de>, Simon Riggs <simon(at)2ndquadrant(dot)com>
Subject: Re: HOT chain bug in latestRemovedXid calculation
Date: 2020-12-31 00:33:47
Message-ID: CAH2-Wzka4Z3=YmHoxLFu8c4_n4kuUp7sZcZZjav_pCJdqv4XAg@mail.gmail.com
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On Mon, Dec 28, 2020 at 9:49 PM Peter Geoghegan <pg(at)bowt(dot)ie> wrote:
> I would like to commit this patch to v12, the first version that did
> this process during original execution rather than in REDO routines.
> It seems worth keeping the back branches in sync here. I suspect that
> the old approach used prior to Postgres 12 has subtle buglets caused
> by inconsistencies during Hot Standby (I have heard rumors). I'd
> rather just not go there given the lack of field reports about this
> problem.

Pushed that a moment ago.

--
Peter Geoghegan

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