Re: Vacuum statistics

From: Alena Rybakina <lena(dot)ribackina(at)yandex(dot)ru>
To: Andrey Borodin <x4mmm(at)yandex-team(dot)ru>
Cc: Andrei Lepikhov <lepihov(at)gmail(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>, Alexander Korotkov <aekorotkov(at)gmail(dot)com>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, Jim Nasby <jnasby(at)upgrade(dot)com>, Bertrand Drouvot <bertranddrouvot(dot)pg(at)gmail(dot)com>, Kirill Reshke <reshkekirill(at)gmail(dot)com>, Andrei Zubkov <zubkov(at)moonset(dot)ru>, Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com>, Melanie Plageman <melanieplageman(at)gmail(dot)com>, jian he <jian(dot)universality(at)gmail(dot)com>, Sami Imseih <samimseih(at)gmail(dot)com>, vignesh C <vignesh21(at)gmail(dot)com>, Ilia Evdokimov <ilya(dot)evdokimov(at)tantorlabs(dot)com>
Subject: Re: Vacuum statistics
Date: 2026-03-17 18:11:46
Message-ID: 69e99101-a308-468f-b895-8057305699bf@yandex.ru
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On 16.03.2026 17:27, Andrey Borodin wrote:

>> On 16 Mar 2026, at 17:11, Alena Rybakina <lena(dot)ribackina(at)yandex(dot)ru> wrote:
>>
>> I moved the tests there. Regression tests are unfortunately not an option because the statistics are not stable.
> I think there's no need to test for correct numbers. It would be totally enough
> to just for sane numbers or even any numbers at all.
> If the test just invokes the function without segfaulting - that's already by far
> better than no test at all.
>
> Of course, test that verifies expected behavior is better, if it's possible.

I think last version is stable - it is in the isolation test. The last
version is here
https://www.postgresql.org/message-id/68939c47-fa0c-4198-853a-92d1390079da%40yandex.ru

--
-----------
Best regards,
Alena Rybakina

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