From: Melanie Plageman Date: Tue, 21 Apr 2026 21:32:45 +0000 (-0400) Subject: Stabilize btree_gist test against on-access VM setting X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=62407d26b7c9e619ed696fced88fdacc5d1ae522;p=thirdparty%2Fpostgresql.git Stabilize btree_gist test against on-access VM setting The btree_gist enum test expects a bitmap heap scan. Since b46e1e54d07 enabled setting the VM during on-access pruning and 378a21618 set pd_prune_xid on INSERT, scans of enumtmp may set pages all-visible. If autovacuum or autoanalyze then updates pg_class.relallvisible, the planner could choose an index-only scan instead. Make the enumtmp a temp table to exclude it from autovacuum/autoanalyze. Reported-by: Alexander Lakhin Author: Melanie Plageman Discussion: https://postgr.es/m/46733d68-aec0-4d09-8120-4c66b87047a4%40gmail.com --- diff --git a/contrib/btree_gist/expected/enum.out b/contrib/btree_gist/expected/enum.out index 5782f438838..887cf0f7788 100644 --- a/contrib/btree_gist/expected/enum.out +++ b/contrib/btree_gist/expected/enum.out @@ -3,7 +3,7 @@ create type rainbow as enum ('r','o','g','b','i','v'); -- enum values added later take some different codepaths internally, -- so make sure we have coverage for those too alter type rainbow add value 'y' before 'g'; -CREATE TABLE enumtmp (a rainbow); +CREATE TEMPORARY TABLE enumtmp (a rainbow); \copy enumtmp from 'data/enum.data' SET enable_seqscan=on; select a, count(*) from enumtmp group by a order by 1; diff --git a/contrib/btree_gist/sql/enum.sql b/contrib/btree_gist/sql/enum.sql index d662cb63221..0cb5979a1dd 100644 --- a/contrib/btree_gist/sql/enum.sql +++ b/contrib/btree_gist/sql/enum.sql @@ -6,7 +6,7 @@ create type rainbow as enum ('r','o','g','b','i','v'); -- so make sure we have coverage for those too alter type rainbow add value 'y' before 'g'; -CREATE TABLE enumtmp (a rainbow); +CREATE TEMPORARY TABLE enumtmp (a rainbow); \copy enumtmp from 'data/enum.data'