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From: Noah Misch <noah@leadboat.com>
To: Heikki Linnakangas <hlinnaka@iki.fi>
Cc: orlovmg@gmail.com
Cc: pgsql-hackers@postgresql.org
Subject: Re: 64-bit MultiXactOffset vs. 9.3->9.4 upgrade, pg_resetwal, "wraparound" msg
Date: Sat, 19 Sep 2026 07:21:22 -0700
Message-ID: <20260919142122.52.noahmisch@microsoft.com> (raw)
In-Reply-To: <a432f851-deb1-4f24-80cb-9348cb6cd98a@iki.fi>
References: <20260827231757.78.noahmisch@microsoft.com>
	<8fc26d4c-ff74-4cae-9c3d-db5c4f41d4ec@iki.fi>
	<d35f1255-9232-4fae-a134-bfe2be7bf926@iki.fi>
	<20260917162105.56.noahmisch@microsoft.com>
	<a432f851-deb1-4f24-80cb-9348cb6cd98a@iki.fi>

On Fri, Sep 18, 2026 at 09:15:38PM +0300, Heikki Linnakangas wrote:
> From 866999c1251fbbde2f1d9db2799734c7c6e8fe54 Mon Sep 17 00:00:00 2001
> From: Heikki Linnakangas <heikki.linnakangas@iki.fi>
> Date: Fri, 18 Sep 2026 20:57:26 +0300
> Subject: [PATCH 1/1] Check that oldestXID and oldestMulti are consistent at
>  pg_upgrade

I read this patch.  It looks reasonable, and I expect it provides the intended
defense.  Thank you.

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  To: pgsql-hackers@postgresql.org
  Cc: noah@leadboat.com, hlinnaka@iki.fi, orlovmg@gmail.com
  Subject: Re: 64-bit MultiXactOffset vs. 9.3->9.4 upgrade, pg_resetwal, "wraparound" msg
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