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help / color / mirror / Atom feedFrom: Michael Paquier <michael@paquier.xyz>
To: pgsql-committers@lists.postgresql.org
Subject: pgsql: Use direct hash lookup in logicalrep_partmap_invalidate_cb()
Date: Mon, 27 Jul 2026 00:53:11 +0000
Message-ID: <E1wo9ah-00000000S6D-0eC8@gemulon.postgresql.org> (raw)
Use direct hash lookup in logicalrep_partmap_invalidate_cb()
This replaces an O(N) hash_seq_search() loop by an O(1) lookup, removing
a TODO item, making the invalidation callback faster when dealing with
many relations. This can work because LogicalRepPartMap is keyed by a
partition OID, and a relmapentry's localreloid matches with it.
An assertion is added in logicalrep_partition_open() to enforce the fact
that localreloid matches with the hash key.
Author: DaeMyung Kang <charsyam@gmail.com>
Discussion: https://postgr.es/m/20260417174450.4158878-1-charsyam@gmail.com
Branch
------
master
Details
-------
https://git.postgresql.org/pg/commitdiff/0962f9e344390c69e44bc55675510b2fa2b3f778
Modified Files
--------------
src/backend/replication/logical/relation.c | 23 +++++++++--------------
1 file changed, 9 insertions(+), 14 deletions(-)
Message-ID: <E1wo9ah-00000000S6D-0eC8@gemulon.postgresql.org>
Permalink: ../E1wo9ah-00000000S6D-0eC8@gemulon.postgresql.org/
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To: pgsql-committers@postgresql.org
Cc: michael@paquier.xyz, pgsql-committers@lists.postgresql.org
Subject: Re: pgsql: Use direct hash lookup in logicalrep_partmap_invalidate_cb()
In-Reply-To: <E1wo9ah-00000000S6D-0eC8@gemulon.postgresql.org>
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