| From: | Julien Rouhaud <rjuju123(at)gmail(dot)com> |
|---|---|
| To: | Bruce Momjian <bruce(at)momjian(dot)us> |
| Cc: | Hannu Krosing <hannuk(at)google(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>, Michael Paquier <michael(at)paquier(dot)xyz>, torikoshia <torikoshia(at)oss(dot)nttdata(dot)com>, Atsushi Torikoshi <atorik(at)gmail(dot)com>, Tatsuro Yamada <tatsuro(dot)yamada(dot)tf(at)nttcom(dot)co(dot)jp>, Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com>, Evgeny Efimkin <efimkin(at)yandex-team(dot)ru>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: Feature improvement: can we add queryId for pg_catalog.pg_stat_activity view? |
| Date: | 2021-03-20 05:28:33 |
| Message-ID: | 20210320052833.ojsg2azbs5ahnlgi@nol |
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| Lists: | pgsql-hackers |
On Fri, Mar 19, 2021 at 08:10:54PM -0400, Bruce Momjian wrote:
> On Sat, Mar 20, 2021 at 01:03:16AM +0100, Hannu Krosing wrote:
> > It would be really convenient if user-visible serialisations of the query id
> > had something that identifies the computation method.
> >
> > maybe prefix 'N' for internal, 'S' for pg_stat_statements etc.
> >
> > This would immediately show in logs at what point the id calculator was changed
>
> Yeah, but it an integer, and I don't think we want to change that.
Also, with Bruce's approach to ask extensions to error out if they would
overwrite a queryid the only way to change the calculation method is a restart.
So only one source can exist in the system.
Hopefully that's a big enough hammer that administrators will know what method
they're using.
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