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From: Tatsuo Ishii <[email protected]>
To: [email protected]
Subject: pgpool: Fix query cache to invalidate cache when MERGE statement is use
Date: Tue, 07 Apr 2026 03:59:37 +0000
Message-ID: <[email protected]> (raw)

Fix query cache to invalidate cache when MERGE statement is used.

MERGE was introduced in PostgreSQL 15 and Pgpool-II 4.4 imported 15's
parer.  However, there was an oversight in query cache sub module:
i.e.  MERGE statement did not trigger invalidation of query cache.

Author: Nadav Shatz <[email protected]>
Discussion: https://www.postgresql.org/message-id/20260407.090802.1335576118037412011.ishii%40postgresql.org
Backpatch-through: v4.4 where MERGE was introduced

Branch
------
V4_7_STABLE

Details
-------
https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=22d332216da336cffa66e825faf604252d764...

Modified Files
--------------
src/query_cache/pool_memqcache.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)

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