On Mon, Aug 26, 2019 at 09:03:08PM +0000, Tom Lane wrote:
> Fix 007_sync_rep.pl to notice failures in ALTER SYSTEM SET.
> 
> If a test case tried to set an invalid value of synchronous_standby_names,
> the test script didn't detect that, which seems like a bad idea.
> Noticed while testing a proposed patch that broke some of these
> test cases.

Just for the note.  I think that this needs a closer lookup and I am
afraid that there are more issues like this one.  For example, in
012_subtransactions.pl, pg_reload_conf() is called with
PostgresNode::psql without checking for an error which is a bad idea
after switching to synchonous replication.  Most of the transactions
done in this scrupt should also complain immediately on an error.
--
Michael

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