From: Jeff Davis <jdavis@postgresql.org>
To: pgsql-committers@lists.postgresql.org
Subject: pgsql: pg_locale.c: Fix REL_18_STABLE for srclen < 0.
Date: Tue, 18 Aug 2026 01:06:34 +0000
Message-ID: <E1ww8Hh-00000000zTI-3ZhK@gemulon.postgresql.org> (raw)
pg_locale.c: Fix REL_18_STABLE for srclen < 0.
Ensure that srclen >= 0 before calling strlower_c(), etc.
Commit 5f003855e7 backported strlower_c(), etc., to 18, but did not
account for the srclen < 0 behavior that existed in 18 (and was
removed later in version 19 with commit 6d22c67c3b).
No callers in core use the srclen < 0 behavior, but it's possible
(though unlikely) that extensions do.
This applies to REL_18_STABLE only.
Discussion: https://postgr.es/m/v36ssaygf7grb3qzfsjhtdzi7kqd45ds56nyuf7gi5qjml4qbb@ezmfqzmhlrs2
Branch
------
REL_18_STABLE
Details
-------
https://git.postgresql.org/pg/commitdiff/27e2afb492cd553093c92ea917d24651b5a9ae16
Modified Files
--------------
src/backend/utils/adt/pg_locale.c | 8 ++++++++
1 file changed, 8 insertions(+)
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To: pgsql-committers@postgresql.org
Cc: jdavis@postgresql.org, pgsql-committers@lists.postgresql.org
Subject: Re: pgsql: pg_locale.c: Fix REL_18_STABLE for srclen < 0.
In-Reply-To: <E1ww8Hh-00000000zTI-3ZhK@gemulon.postgresql.org>
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