From: Álvaro Herrera <alvherre@kurilemu.de>
To: pgsql-committers@lists.postgresql.org
Subject: pgsql: Fix snapshot handling bug in recent BRIN fix
Date: Tue, 04 Nov 2025 19:35:30 +0000
Message-ID: <E1vGMoU-0052Se-2M@gemulon.postgresql.org> (raw)
Fix snapshot handling bug in recent BRIN fix
Commit a95e3d84c0e0 added ActiveSnapshot push+pop when processing
work-items (BRIN autosummarization), but forgot to handle the case of
a transaction failing during the run, which drops the snapshot untimely.
Fix by making the pop conditional on an element being actually there.
Author: Álvaro Herrera <alvherre@kurilemu.de>
Backpatch-through: 13
Discussion: https://postgr.es/m/202511041648.nofajnuddmwk@alvherre.pgsql
Branch
------
REL_13_STABLE
Details
-------
https://git.postgresql.org/pg/commitdiff/ef81697fee774d3e21e0c479f3f9515a7d0f256f
Modified Files
--------------
src/backend/postmaster/autovacuum.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
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To: pgsql-committers@postgresql.org
Cc: alvherre@kurilemu.de, pgsql-committers@lists.postgresql.org
Subject: Re: pgsql: Fix snapshot handling bug in recent BRIN fix
In-Reply-To: <E1vGMoU-0052Se-2M@gemulon.postgresql.org>
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