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In 002_blocks.pl, try to prevent a HOT update.

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Make the new tuple larger than the old one so that it, hopefully, won't
manage to squeeze into leftover freespace on the same page. The test
is trying to verify that the UPDATE touches 2 pages, but if a HOT
update happens, then it doesn't.

Per buildfarm.
This commit is contained in:
Robert Haas 2024-01-31 11:35:41 -05:00
parent f0106b6d2d
commit b6ee30ec08
1 changed files with 2 additions and 1 deletions
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3
src/bin/pg_walsummary/t/002_blocks.pl
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@ -56,7 +56,8 @@ note_wal_summary_dir("after insert", $node1);
# Update a row in the first block of the table and trigger a checkpoint.
$node1->safe_psql('postgres', <<EOM);
UPDATE mytable SET b = 'abcdefghijklmnopqrstuvwxyz' WHERE a = 2;
UPDATE mytable SET b = 'abcdefghijklmnopqrstuvwxyz' || b || '01234567890'
WHERE a = 2;
CHECKPOINT;
EOM