From: Heikki Linnakangas <heikki.linnakangas@iki.fi>
To: pgsql-committers@lists.postgresql.org
Subject: pgsql: Fix setting next multixid's offset at offset wraparound
Date: Fri, 05 Dec 2025 09:48:49 +0000
Message-ID: <E1vRSQi-002uqF-2x@gemulon.postgresql.org> (raw)
Fix setting next multixid's offset at offset wraparound
In commit 789d65364c, we started updating the next multixid's offset
too when recording a multixid, so that it can always be used to
calculate the number of members. I got it wrong at offset wraparound:
we need to skip over offset 0. Fix that.
Discussion: https://www.postgresql.org/message-id/d9996478-389a-4340-8735-bfad456b313c@iki.fi
Backpatch-through: 14
Branch
------
REL_17_STABLE
Details
-------
https://git.postgresql.org/pg/commitdiff/cad40cec24f338a4ac8004b58301c0809df48c03
Modified Files
--------------
src/backend/access/transam/multixact.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
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To: pgsql-committers@postgresql.org
Cc: heikki.linnakangas@iki.fi, pgsql-committers@lists.postgresql.org
Subject: Re: pgsql: Fix setting next multixid's offset at offset wraparound
In-Reply-To: <E1vRSQi-002uqF-2x@gemulon.postgresql.org>
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