Re: identifying the backend that owns a temporary schema

On Tue, Aug 23, 2022 at 10:29:05AM +0100, Greg Stark wrote:
> Having this function would be great (I admit I never responded because
> I never figured out if your suggestion was right or not:). But should
> it also be added to the pg_stat_activity view? Perhaps even just in
> the SQL view using the function.
>
> Alternately should pg_stat_activity show the actual temp schema name
> instead of the id? I don't recall if it's visible outside the backend
> but if it is, could pg_stat_activity show whether the temp schema is
> actually attached or not?

I'm open to adding the backend ID or the temp schema name to
pg_stat_activity, but I wouldn't be surprised to learn that others aren't.
It'd be great to hear a few more opinions on the idea before I spend too
much time on the patches. IMO we should still adjust the
pg_stat_get_backend_*() functions even if we do end up adjusting
pg_stat_activity.

--
Nathan Bossart
Amazon Web Services: https://aws.amazon.com