Re: [PATCH] remove pg_standby

On Thu, Jan 28, 2021 at 8:36 PM Michael Paquier <michael@paquier.xyz> wrote:
> On Wed, Jan 27, 2021 at 05:08:56PM +0900, Fujii Masao wrote:
> > But one question is; shouldn't we follow "usual" way to retire the
> > feature instead of dropping that immediately? That is, mark
> > pg_standby as obsolete, announce that pg_standby will be dropped
> > after several releases, and then drop pg_standby. This seems safe
> > because there might be some users. While it's been marked as
> > obsolete, maybe WAL prefetch feature doesn't work with pg_standby,
> > but we can live with that because it's obsolete.
>
> Thanks.  FWIW, at this stage, my take is just to move on and remove
> it.  If we mark that as obsolete, it will stay around forever while
> annoying future development.

I agree.  Also, this thing is entirely separate from the server, so a
hypothetical user who really wants to upgrade to 14 but keep using
pg_standby a bit longer could always use the version that shipped with
13.