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Commitcbf4177

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Disable synchronize_seqscans in 027_stream_regress.pl.
This script runs the core regression tests with quite a small value ofshared_buffers, making it prone to breakage due to synchronize_seqscanskicking in where the tests don't expect that. Disable that feature tostabilize the tests.Discussion:https://postgr.es/m/1258185.1648876239@sss.pgh.pa.us
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‎src/test/recovery/t/027_stream_regress.pl

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@@ -16,8 +16,14 @@
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# Initialize primary node
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my$node_primary = PostgreSQL::Test::Cluster->new('primary');
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$node_primary->init(allows_streaming=> 1);
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# Increase some settings that Cluster->new makes too low by default.
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$node_primary->adjust_conf('postgresql.conf','max_connections','25');
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$node_primary->append_conf('postgresql.conf','max_prepared_transactions = 10');
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# We'll stick with Cluster->new's small default shared_buffers, but since that
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# makes synchronized seqscans more probable, it risks changing the results of
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# some test queries. Disable synchronized seqscans to prevent that.
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$node_primary->append_conf('postgresql.conf','synchronize_seqscans = off');
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# WAL consistency checking is resource intensive so require opt-in with the
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# PG_TEST_EXTRA environment variable.

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