From: Dean Rasheed <dean.a.rasheed@gmail.com>
To: pgsql-committers@lists.postgresql.org
Subject: pgsql: Fix replica identity check for MERGE.
Date: Thu, 04 Sep 2025 10:53:50 +0000
Message-ID: <E1uu7bC-000S08-26@gemulon.postgresql.org> (raw)
Fix replica identity check for MERGE.
When executing a MERGE, check that the target relation supports all
actions mentioned in the MERGE command. Specifically, check that it
has a REPLICA IDENTITY if it publishes updates or deletes and the
MERGE command contains update or delete actions. Failing to do this
can silently break replication.
Author: Zhijie Hou <houzj.fnst@fujitsu.com>
Reviewed-by: Ashutosh Bapat <ashutosh.bapat.oss@gmail.com>
Reviewed-by: Dean Rasheed <dean.a.rasheed@gmail.com>
Tested-by: Chao Li <li.evan.chao@gmail.com>
Discussion: https://postgr.es/m/OS3PR01MB57180C87E43A679A730482DF94B62@OS3PR01MB5718.jpnprd01.prod.outlook.com
Backpatch-through: 15
Branch
------
master
Details
-------
https://git.postgresql.org/pg/commitdiff/fc6600fc1cd13b695fbde4b5f3ff0d2e97c36dea
Modified Files
--------------
src/backend/executor/execMain.c | 11 ++++++++++-
src/test/regress/expected/publication.out | 28 ++++++++++++++++++++++++++++
src/test/regress/sql/publication.sql | 31 +++++++++++++++++++++++++++++++
3 files changed, 69 insertions(+), 1 deletion(-)
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To: pgsql-committers@postgresql.org
Cc: dean.a.rasheed@gmail.com, pgsql-committers@lists.postgresql.org
Subject: Re: pgsql: Fix replica identity check for MERGE.
In-Reply-To: <E1uu7bC-000S08-26@gemulon.postgresql.org>
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