On Thu, May 13, 2021 at 09:41:42PM -0400, Bruce Momjian wrote:
> On Fri, May 14, 2021 at 09:40:15AM +0800, Julien Rouhaud wrote:
> > On Fri, May 14, 2021 at 8:13 AM Bruce Momjian <bruce@momjian.us> wrote:
> > >
> > > On Thu, May 13, 2021 at 08:04:37PM -0400, Álvaro Herrera wrote:
> > > > Here's a first attempt at what was suggested. If you say "auto" it
> > > > remains auto in SHOW, but it gets enabled if a module asks for it.
> > > >
> > > > Not final yet, but I thought I'd throw it out for early commentary ...
> > >
> > > I certainly like this idea better than having the extension change the
> > > output of the GUC.
> >
> > Oh, I didn't understand that it was the major blocker. I'm fine with it too.
>
> I think if we keep the output as 'auto', and document that you check
> pg_stat_activity for a hash to see if it is enabled, that gets us pretty
> far.
I think keeping the output as 'auto', and documenting that this query
must be run to determine if the query id is being computed:
SELECT query_id
FROM pg_stat_activity
WHERE pid = pg_backend_pid();
is the right approach.
--
Bruce Momjian <bruce@momjian.us> https://momjian.us
EDB https://enterprisedb.com
If only the physical world exists, free will is an illusion.