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help / color / mirror / Atom feedFrom: Melanie Plageman <melanieplageman@gmail.com>
To: pgsql-committers@lists.postgresql.org
Subject: pgsql: Stabilize plancache test against on-access VM setting
Date: Tue, 21 Apr 2026 18:39:13 +0000
Message-ID: <E1wFG08-0022id-1W@gemulon.postgresql.org> (raw)
Stabilize plancache test against on-access VM setting
Since b46e1e54d07 allowed setting the VM on-access and 378a21618 set
pd_prune_xid on INSERT, the testing of generic/custom plans in
src/test/regress/sql/plancache.sql was destabilized.
One of the queries of test_mode could have set the pages all-visible and
if autovacuum/autoanalyze ran and updated pg_class.relallvisible, it
would affect whether we got an index-only or sequential scan.
Preclude this by disabling autovacuum and autoanalyze for test_mode and
carefully sequencing when ANALYZE is run.
Reported-by: Alexander Lakhin <exclusion@gmail.com>
Author: Melanie Plageman <melanieplageman@gmail.com>
Discussion: https://postgr.es/m/71277259-264e-4983-a201-938b404049d7%40gmail.com
Branch
------
master
Details
-------
https://git.postgresql.org/pg/commitdiff/85ae8ab05334f335e3b97d4a4b6309f926eda39c
Modified Files
--------------
src/test/regress/expected/plancache.out | 8 ++++++--
src/test/regress/sql/plancache.sql | 9 +++++++--
2 files changed, 13 insertions(+), 4 deletions(-)
Message-ID: <E1wFG08-0022id-1W@gemulon.postgresql.org>
Permalink: ../E1wFG08-0022id-1W@gemulon.postgresql.org/
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To: pgsql-committers@postgresql.org
Cc: melanieplageman@gmail.com, pgsql-committers@lists.postgresql.org
Subject: Re: pgsql: Stabilize plancache test against on-access VM setting
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