Dear Nathan,
> I spent some more time on the prevent-unnecessary-wakeups patch for
> logical/worker.c that I've been alluding to in this thread, and I found a
> few more places where we depend on the worker periodically waking up. This
> seems to be a common technique, so I'm beginning to wonder whether these
> changes are worthwhile. I think there's a good chance it would become a
> game of whac-a-mole.
I think at least this feature is needed for waking up workers that are slept due to the min_apply_delay.
The author supposed this patch and pinned our thread[1].
[1]:
https://www.postgresql.org/message-id/TYCPR01MB8373775ECC6972289AF8CB30ED0F9%40TYCPR01MB8373.jpnprd01.prod.outlook.com
Best Regards,
Hayato Kuroda
FUJITSU LIMITED
