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Commit34226d4

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Stabilize 039_end_of_wal test.
The first test was sensitive to the insert LSN after setting up thecatalogs, which depended on environmental things like the locales on theOS and usernames. Switch to a new WAL file before the first test, as asimple 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
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‎src/test/recovery/t/039_end_of_wal.pl

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@@ -251,6 +251,12 @@ sub advance_to_record_splitting_zone
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$TLI =$node->safe_psql('postgres',
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"SELECT timeline_id FROM pg_control_checkpoint();");
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# Initial LSN may vary across systems due to different catalog contents set up
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# by initdb. Switch to a new WAL file so all systems start out in the same
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# place. The first test depends on trailing zeroes on a page with a valid
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# header.
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$node->safe_psql('postgres',"SELECT pg_switch_wal();");
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my$end_lsn;
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my$prev_lsn;
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