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help / color / mirror / Atom feedFrom: Tom Lane <[email protected]>
To: Robert Haas <[email protected]>
Cc: Alexander Lakhin <[email protected]>
Cc: Lukas Fittl <[email protected]>
Cc: PostgreSQL Hackers <[email protected]>
Cc: Nathan Bossart <[email protected]>
Cc: Melanie Plageman <[email protected]>
Cc: heikki.linnakangas <[email protected]>
Subject: Re: pg_plan_advice
Date: Tue, 07 Apr 2026 18:05:47 -0400
Message-ID: <[email protected]> (raw)
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Robert Haas <[email protected]> writes:
> 0001 and 0002 implement the "retry a few times" idea for avoiding
> test_plan_advice failures. I argue that (a) these are reasonable
> post-commit stabilization that should not be blocked by feature freeze
> and (b) most people here will be happier with a solution like this
> that will normally cost very little than they will be with switching
> test_plan_advice to executing serially. The RMT can decide whether it
> agrees.
I'm not on the RMT, but I agree this is a nicer solution.
(I didn't read these patches in detail, but in a quick once-over
they seemed plausible.)
> The other question here is whether it's really a good idea to
> apply this now considering that we've seen only one failure so far. I
> think it's probably a good idea to do something like this before
> release, so that we hopefully reduce the false positive rate from the
> test to something much closer to zero, but I think we've still had
> only the one failure, and I'm really interested in knowing how close
> the failure rate is to zero already. The RMT may have an opinion on
> how long to wait before doing something like this, too.
No strong opinion about that. Certainly waiting a couple of weeks
to gather more data seems reasonable.
regards, tom lane
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