On Wed, Feb 23, 2022 at 11:14 AM Andres Freund <and...@anarazel.de> wrote:
>
> Hi,
>
> On 2022-02-22 14:45:19 +0900, Masahiko Sawada wrote:
> > I've attached a patch that changes pg_stat_subscription_workers view.
>
> Thanks for working on this!
>
> Why are the stats stored in the per-database stats file / as a second level
> below the database? While they're also associated with a database, it's a
> global catalog, so it seems to make more sense to have them "live" globally as
> well?

Good point. The reason why we used to use per-database stats file is
that we were storing some relation information there. But now that we
don't need to have such information, it makes more sense to have them
live globally. I'll change the patch accordingly.

>
> Not just from an aesthetical perspective, but there might also be cases where
> it's useful to send stats from the stats launcher. E.g. the number of times
> the launcher couldn't start a worker because the max numbers of workers was
> already active or such.

Good idea.

Regards,

-- 
Masahiko Sawada
EDB:  https://www.enterprisedb.com/


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