Re: [PATCH] Preserve replication origin OIDs in pg_upgrade

From: Ajin Cherian <itsajin(at)gmail(dot)com>
To: shveta malik <shveta(dot)malik(at)gmail(dot)com>
Cc: Rui Zhao <zhaorui126(at)gmail(dot)com>, Shlok Kyal <shlok(dot)kyal(dot)oss(at)gmail(dot)com>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, "Hayato Kuroda (Fujitsu)" <kuroda(dot)hayato(at)fujitsu(dot)com>, Zsolt Parragi <zsolt(dot)parragi(at)percona(dot)com>, "pgsql-hackers(at)lists(dot)postgresql(dot)org" <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: [PATCH] Preserve replication origin OIDs in pg_upgrade
Date: 2026-07-27 10:46:22
Message-ID: CAFPTHDYKt+irC-UfhVghTkH04-Hm6jifw2KfiNNvafVuXm-nDw@mail.gmail.com
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On Mon, Jul 27, 2026 at 1:21 PM shveta malik <shveta(dot)malik(at)gmail(dot)com> wrote:
>
> On Sun, Jul 26, 2026 at 9:03 PM Rui Zhao <zhaorui126(at)gmail(dot)com> wrote:
> > So if the skip stays as it is, the count should follow it -- counting only
> > status rows whose remote_lsn is non-zero. If instead it goes back to advancing
> > unconditionally, the two line up on their own and the check needs no change.
> > Either is fine by me; it's the pair being out of step that seemed worth
> > mentioning while that behaviour is still being decided.
> >
>
> Okay, I see your point. In that case, I think we should track the
> origin with lsn = 0x0 rather than skip it. To me, this seems more
> understandable than counting only the status rows whose remote_lsn is
> non-zero.

Updated the patch accordingly, also fixed the few documentation
errors. Attaching v14

regards,
Ajin Cherian
Fujitsu Australia

Attachment Content-Type Size
v14-0001-Preserve-subscription-OIDs-during-pg_upgrade.patch application/octet-stream 9.4 KB
v14-0002-Preserve-replication-origin-OIDs-during-pg_upgra.patch application/octet-stream 38.0 KB

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