| From: | "Andrey M(dot) Borodin" <x4mmm(at)yandex-team(dot)ru> |
|---|---|
| To: | Ashutosh Sharma <ashu(dot)coek88(at)gmail(dot)com> |
| Cc: | PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>, Andres Freund <andres(at)anarazel(dot)de>, Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Stephen Frost <sfrost(at)snowman(dot)net>, Robert Haas <robertmhaas(at)gmail(dot)com> |
| Subject: | Re: recovering from "found xmin ... from before relfrozenxid ..." |
| Date: | 2020-07-31 14:57:22 |
| Message-ID: | D2B1B103-20D7-4BD0-BAC7-470A319DC3E1@yandex-team.ru |
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| Lists: | pgsql-hackers |
> 31 июля 2020 г., в 17:32, Ashutosh Sharma <ashu(dot)coek88(at)gmail(dot)com> написал(а):
>
>
> On Wed, Jul 29, 2020 at 9:58 AM Ashutosh Sharma <ashu(dot)coek88(at)gmail(dot)com> wrote:
>
> > I think we should let VACUUM do that.
> Sometimes VACUUM will not get to these pages, because they are marked All Frozen.
> An possibly some tuples will get stale on this page again
>
> Hmm, okay, will have a look into this. Thanks.
>
> I had a look over this and found that one can use the DISABLE_PAGE_SKIPPING option with VACUUM to disable all its page-skipping behavior.
Oh, wow, I didn't know that. Thanks! This actually will do the trick.
I'll try to review your patch again next week.
Thanks!
Best regards, Andrey Borodin.
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