pgsql: Stabilize subscription stats test. - Mailing list pgsql-committers

Stabilize subscription stats test.

The new test added by commit 68a59f9e9 disables the subscription and
manually drops the associated replication slot. However, since
disabling the subsubscription doesn't wait for a walsender to release
the replication slot and exit, pg_drop_replication_slot() could
fail. Avoid failure by adding a wait for the replication slot to
become inactive.

Reported-by: Hou Zhijie, as per buildfarm
Reviewed-by: Hou Zhijie
Discussion: https://postgr.es/m/OS0PR01MB571682316378379AA34854F694E9A%40OS0PR01MB5716.jpnprd01.prod.outlook.com
Backpatch-through: 15

Branch
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REL_16_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/1b95c8d85fa66c0ef63591b8064b023872a8f43c

Modified Files
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src/test/subscription/t/026_stats.pl | 8 ++++++++
1 file changed, 8 insertions(+)