pgsql: Modernize and optimize pg_buffercache_pages()

From: Heikki Linnakangas <heikki(dot)linnakangas(at)iki(dot)fi>
To: pgsql-committers(at)lists(dot)postgresql(dot)org
Subject: pgsql: Modernize and optimize pg_buffercache_pages()
Date: 2026-04-07 13:06:42
Message-ID: E1wA68f-003Ofv-3B@gemulon.postgresql.org
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Modernize and optimize pg_buffercache_pages()

Refactor pg_buffercache_pages() to use SFRM_Materialize mode and
construct a tuplestore directly. That's simpler and more efficient
than collecting all the data to a custom array first.

Author: Ashutosh Bapat <ashutosh(dot)bapat(dot)oss(at)gmail(dot)com>
Author: Palak Chaturvedi <chaturvedipalak1911(at)gmail(dot)com>
Discussion: https://www.postgresql.org/message-id/CAExHW5sMsaz1j+hrdhyo-DJp7JCgJx87=q2iJfOc_9mwYWyvmw@mail.gmail.com

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/257c8231bf97a77378f6fedb826b1243f0a41612

Modified Files
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contrib/pg_buffercache/pg_buffercache_pages.c | 244 ++++++++------------------
1 file changed, 77 insertions(+), 167 deletions(-)

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