Re: Lost replication slots after pg_upgrade.

Hi John,

Would it work as expected if before pg_upgrade on the standby:
> alter subscription my_subscription disable;
> alter subscription my_subscription set (slot_name = NONE);
> And then after pg_upgrade:
> alter subscription my_subscription enable;
> I have not tried it yet, but I thought this would be the simplest option.

We are using physical replication slots.

Thanks,
Nikhil

On Wed, Feb 9, 2022 at 2:41 AM John DeSoi <desoi(at)pgedit(dot)com> wrote:

>
> > On Feb 8, 2022, at 2:08 AM, Julien Rouhaud <rjuju123(at)gmail(dot)com> wrote:
> >
> > Because pg_upgrade modifies your primary instance in such a way that a
> standby
> > can't simply keep replicating from it.
>
> Would it work as expected if before pg_upgrade on the standby:
>
> alter subscription my_subscription disable;
> alter subscription my_subscription set (slot_name = NONE);
>
> And then after pg_upgrade:
>
> alter subscription my_subscription enable;
>
> I have not tried it yet, but I thought this would be the simplest option.
>
> John DeSoi, Ph.D.
>
>
>