Hi Melanie,
> Jacky's original fix with XLogTruncateRelation() is the one I prefer.
Fine with me. I tested v5 on master, 19, 18 and 17. With the fix the
standby restarts.
One small thing. On 17 the test part does not apply, because
001_concurrent_transaction.pl has no standby there.
Thanks,
Shihao