Re: pg_upgrade and logical replication

On Sat, 25 Nov 2023 at 17:50, Amit Kapila <amit.kapila16@gmail.com> wrote:
>
> 2.
> + * b) SUBREL_STATE_SYNCDONE: A relation upgraded while in this state
> + * would retain the replication origin in certain cases.
>
> I think this is vague. Can we briefly describe cases where the origins
> would be retained?

Modified

> 3. I think the cases where the publisher is also upgraded restoring
> the origin's LSN is of no use. Currently, I can't see a problem with
> restoring stale originLSN in such cases as we won't be able to
> distinguish during the upgrade but I think we should document it in
> the comments somewhere in the patch.

Added comments

These are handled in the v20 version patch attached at:
https://www.postgresql.org/message-id/CALDaNm0ST1iSrJLD_CV6hQs%3Dw4GZRCRdftQvQA3cO8Hq3QUvYw%40mail.gmail.com

Regards,
Vignesh