| From: | Andres Freund <andres(at)anarazel(dot)de> |
|---|---|
| To: | Michael Paquier <michael(at)paquier(dot)xyz> |
| Cc: | "Imseih (AWS), Sami" <simseih(at)amazon(dot)com>, Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com>, "Drouvot, Bertrand" <bertranddrouvot(dot)pg(at)gmail(dot)com>, vignesh C <vignesh21(at)gmail(dot)com>, Nathan Bossart <nathandbossart(at)gmail(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, "Bossart, Nathan" <bossartn(at)amazon(dot)com>, Peter Geoghegan <pg(at)bowt(dot)ie>, Justin Pryzby <pryzby(at)telsasoft(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Add index scan progress to pg_stat_progress_vacuum |
| Date: | 2023-04-10 22:34:17 |
| Message-ID: | 20230410223417.5pbhyy4xbgm5z5cz@awork3.anarazel.de |
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| Lists: | 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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