| From: | Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> |
|---|---|
| To: | Antonin Houska <ah(at)cybertec(dot)at> |
| Cc: | "Hayato Kuroda (Fujitsu)" <kuroda(dot)hayato(at)fujitsu(dot)com>, Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>, Mihail Nikalayeu <mihailnikalayeu(at)gmail(dot)com>, Srinath Reddy Sadipiralla <srinath2133(at)gmail(dot)com>, Matthias van de Meent <boekewurm+postgres(at)gmail(dot)com>, Pg Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>, Robert Treat <rob(at)xzilla(dot)net> |
| Subject: | Re: Adding REPACK [concurrently] |
| Date: | 2026-04-08 03:49:04 |
| Message-ID: | CAA4eK1KWDbBk4FgbbWdivQLrPPzR4zgvfnHK4WjWC78rbuRVbg@mail.gmail.com |
| Views: | Whole Thread | Raw Message | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
On Tue, Apr 7, 2026 at 7:49 PM Antonin Houska <ah(at)cybertec(dot)at> wrote:
>
> Hayato Kuroda (Fujitsu) <kuroda(dot)hayato(at)fujitsu(dot)com> wrote:
>
> > 02. SnapBuildProcessRunningXacts
> >
> > Per my understanding, the db_specic snapshot can be also serialized. Is it
> > possibility tha normal logical decoding system restores the snapshot and obtain
> > the wrong result?
>
> I don't think that the database-specific xl_running_xacts WAL record affects
> what SnapBuildSerialize() writes to disk: the contents of builder->committed,
> etc. is updated by decoding COMMIT and ABORT records.
>
I think the point is that the other process say a walsender could
restore such a snapshot making it take the wrong decision.
--
With Regards,
Amit Kapila.
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Ashutosh Bapat | 2026-04-08 03:49:26 | Re: Better shared data structure management and resizable shared data structures |
| Previous Message | vignesh C | 2026-04-08 03:45:22 | Re: Logical Replication - revisit `is_table_publication` function implementation |