Fix logical decoding test to correctly check slot removal on standby.

The regression test for logical decoding verifies whether a logical slot
is correctly dropped on a standby when its associated database is dropped.
However, the test mistakenly retrieved slot information from the primary
instead of the standby, causing incorrect behavior.

This commit fixes the issue by ensuring the test correctly checks the slot
on the standby.

Back-patch to all supported versions.

Author: Hayato Kuroda <kuroda.hayato@fujitsu.com>
Reviewed-by: Fujii Masao <masao.fujii@gmail.com>
Discussion: https://postgr.es/m/1fdfd020-a509-403c-bd8f-a04664aba148@oss.nttdata.com
Backpatch-through: 13

diff --git a/src/test/recovery/t/010_logical_decoding_timelines.pl b/src/test/recovery/t/010_logical_decoding_timelines.pl
index 96a3ccca0dadf19abb9ee2f74d10bcf8da68327d..be518e437ae76874fa19f8b03f13f42c492c0e26 100644 (file)
--- a/src/test/recovery/t/010_logical_decoding_timelines.pl
+++ b/src/test/recovery/t/010_logical_decoding_timelines.pl
@@ -94,7 +94,7 @@ is( $node_replica->safe_psql(
                'postgres', q[SELECT 1 FROM pg_database WHERE datname = 'dropme']),
        '',
        'dropped DB dropme on standby');
-is($node_primary->slot('dropme_slot')->{'plugin'},
+is($node_replica->slot('dropme_slot')->{'plugin'},
        '', 'logical slot was actually dropped on standby');
 
 # Back to testing failover...