Kyotaro HORIGUCHI <horiguchi.kyot...@oss.ntt.co.jp> writes:
>> What I'm currently thinking we should do is just use the old method
>> for async queries, and only optimize the synchronous case.
> Ok, I agree with you except for performance issue. I give up to use
> row processor for async query with dblink_is_busy called.
Yeah, that seems like a reasonable idea.
Given the lack of consensus around the suspension API, maybe the best
way to get the underlying libpq patch to a committable state is to take
it out --- that is, remove the "return zero" option for row processors.
Since we don't have a test case for it in dblink, it's hard to escape
the feeling that we may be expending a lot of effort for something that
nobody really wants, and/or misdesigning it for lack of a concrete use
case. Is anybody going to be really unhappy if that part of the patch
gets left behind?
regards, tom lane
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