Re: Add index scan progress to pg_stat_progress_vacuum - Mailing list pgsql-hackers

From Andres Freund
Subject Re: Add index scan progress to pg_stat_progress_vacuum
Date
Msg-id 20230410223417.5pbhyy4xbgm5z5cz@awork3.anarazel.de
Whole thread Raw
In response to Re: Add index scan progress to pg_stat_progress_vacuum  (Michael Paquier <michael@paquier.xyz>)
List pgsql-hackers
Hi,

On 2023-04-10 08:14:18 +0900, Michael Paquier wrote:
> On Fri, Apr 07, 2023 at 12:01:17PM -0700, Andres Freund wrote:
> > Why would it mean that? Parallel workers are updated together with the leader,
> > so there's no compatibility issue?
> 
> My point is that the callback system would still need to be maintained
> in a stable branch, and, while useful, it could be used for much more
> than it is originally written.  I guess that this could be used in
> custom nodes with their own custom parallel nodes.

Hm, I'm somewhat doubtful that that's something we should encourage. And
doubtful we'd get it right without a concrete use case at hand to verify the
design.

Greetings,

Andres Freund



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