pgsql: doc PG 18 relnotes: add incompatibility item about SQLSTATE

From: Bruce Momjian <bruce(at)momjian(dot)us>
To: pgsql-committers(at)lists(dot)postgresql(dot)org
Subject: pgsql: doc PG 18 relnotes: add incompatibility item about SQLSTATE
Date: 2026-10-23 19:05:11
Message-ID: E1xKKZj-00000000UEp-45uy@gemulon.postgresql.org
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doc PG 18 relnotes: add incompatibility item about SQLSTATE

In PG 18 RESTRICT returns a different SQLSTATE than previous releases.

Reported-by: Kacper Kuras

Author: Kacper Kuras

Discussion: https://postgr.es/m/VI0P193MB3111C432A6EEE8B74AD80A30BF912@VI0P193MB3111.EURP193.PROD.OUTLOOK.COM

Backpatch-through: 18 only

Branch
------
REL_18_STABLE

Details
-------
https://git.postgresql.org/pg/commitdiff/9412c35035a74b9e5623b4d7e67c5f77967f0d1a

Modified Files
--------------
doc/src/sgml/release-18.sgml | 20 +++++++++++++++++++-
1 file changed, 19 insertions(+), 1 deletion(-)

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