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From: Melanie Plageman <melanieplageman@gmail.com>
To: pgsql-committers@lists.postgresql.org
Subject: pgsql: Turn visibilitymap_clear() Assert back into an error
Date: Fri, 17 Jul 2026 20:50:22 +0000
Message-ID: <E1wkpVm-000fxc-09@gemulon.postgresql.org> (raw)

Turn visibilitymap_clear() Assert back into an error

Commit ed62d26caca fixed a bug in clearing the visibility map and, while
doing so, made some incidental changes to visibilitymap_clear(). One of
them replaced the error thrown when the wrong buffer is passed to
visibilitymap_clear() with an Assert().

While anyone adding a new visibilitymap_clear() caller should be running
assert-enabled builds, visibilitymap_set() still reports the same
wrong-buffer condition with an elog(ERROR), so visibilitymap_clear()
should also do so for consistency. This change was also unrelated to
the bug fix and is better made as a separate commit. Restore the error.

Reported-by: Fujii Masao <masao.fujii@gmail.com>
Discussion: https://postgr.es/m/CAHGQGwF_PzOv5y7ucFh7Fqqqa8ar83zYwvWugqarRD6%2B7GCtEQ%40mail.gmail.com
Backpatch-through: 19

Branch
------
REL_19_STABLE

Details
-------
https://git.postgresql.org/pg/commitdiff/3180ce3d7a836e7fbcf8946a0e0be9f263353481

Modified Files
--------------
src/backend/access/heap/visibilitymap.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)



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