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Stabilize 039_end_of_wal test.

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The first test was sensitive to the insert LSN after setting up the
catalogs, which depended on environmental things like the locales on the
OS and usernames.  Switch to a new WAL file before the first test, as a
simple way to put every computer into the same state.

Back-patch to all supported releases.

Reported-by: Anton Voloshin <a.voloshin@postgrespro.ru>
Reported-by: Nathan Bossart <nathandbossart@gmail.com>
Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Reviewed-by: Nathan Bossart <nathandbossart@gmail.com>
Discussion: https://postgr.es/m/b26aeac2-cb6d-4633-a7ea-945baae83dcf%40postgrespro.ru
This commit is contained in:
Thomas Munro 2024-08-31 14:32:08 +12:00
parent f3a3311110
commit 2015dd5c90
1 changed files with 6 additions and 0 deletions
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6
src/test/recovery/t/039_end_of_wal.pl
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@ -251,6 +251,12 @@ $WAL_BLOCK_SIZE = get_int_setting($node, 'wal_block_size');
$TLI = $node->safe_psql('postgres',
"SELECT timeline_id FROM pg_control_checkpoint();");
# Initial LSN may vary across systems due to different catalog contents set up
# by initdb. Switch to a new WAL file so all systems start out in the same
# place. The first test depends on trailing zeroes on a page with a valid
# header.
$node->safe_psql('postgres', "SELECT pg_switch_wal();");
my $end_lsn;
my $prev_lsn;