| From: | Antonin Houska <ah(at)cybertec(dot)at> |
|---|---|
| To: | Mihail Nikalayeu <mihailnikalayeu(at)gmail(dot)com> |
| Cc: | Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>, Pg Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>, Robert Treat <rob(at)xzilla(dot)net>, Fujii Masao <masao(dot)fujii(at)gmail(dot)com> |
| Subject: | Re: Adding REPACK [concurrently] |
| Date: | 2025-09-01 05:12:11 |
| Message-ID: | 4607.1756703531@localhost |
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| Lists: | pgsql-hackers |
Mihail Nikalayeu <mihailnikalayeu(at)gmail(dot)com> wrote:
> Hello!
>
> I started an attempt to make a "lightweight" MVCC-safe prototype and
> stuck into the "it is not working" issue.
> After some debugging I realized Antonin's variant (catalog-mode based)
> seems to be broken also...
>
> And after a few more hours I realized non-MVCC is broken as well :)
>
> This is a patch with a test to reproduce the issue related to repack +
> concurrent modifications.
> Seems like some updates may be lost.
>
> I hope the patch logic is clear - but feel free to ask if not.
Are you sure the test is complete? I see no occurrence of the REPACK command
in it.
--
Antonin Houska
Web: https://www.cybertec-postgresql.com
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