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After executing ALTER SUBSCRIPTION tap_sub SET PUBLICATION, we did not wait for the new walsender process to restart. As a result, an INSERT executed immediately after the ALTER could be decoded and skipped, considering it is not part of any subscribed publication. And, the old apply worker could also confirm the LSN of such an INSERT. This could cause the replication to resume from a point after the INSERT. In such cases, we miss the expected warning about the missing publication. To fix this, ensure the walsender has restarted before continuing after ALTER SUBSCRIPTION. Reported-by: Tom Lane as per CI Author: vignesh C <vignesh21@gmail.com> Reviewed-by: Xuneng Zhou <xunengzhou@gmail.com> Reviewed-by: Amit Kapila <amit.kapila16@gmail.com> Discussion: https://postgr.es/m/1230066.1745992333@sss.pgh.pa.us
src/test/subscription/README
Regression tests for subscription/logical replication
=====================================================
This directory contains a test suite for subscription/logical replication.
Running the tests
=================
NOTE: You must have given the --enable-tap-tests argument to configure.
Also, to use "make installcheck", you must have built and installed
contrib/hstore in addition to the core code.
Run
make check
or
make installcheck
You can use "make installcheck" if you previously did "make install".
In that case, the code in the installation tree is tested. With
"make check", a temporary installation tree is built from the current
sources and then tested.
Either way, this test initializes, starts, and stops several test Postgres
clusters.
See src/test/perl/README for more info about running these tests.