Re: Feature improvement: can we add queryId for pg_catalog.pg_stat_activity view?
Magnus Hagander <magnus@hagander.net>
From: Magnus Hagander <magnus@hagander.net>
To: Fujii Masao <masao.fujii@oss.nttdata.com>
Cc: Julien Rouhaud <rjuju123@gmail.com>, Bruce Momjian <bruce@momjian.us>, Alvaro Herrera <alvherre@alvh.no-ip.org>, Tom Lane <tgl@sss.pgh.pa.us>, Nitin Jadhav <nitinjadhavpostgres@gmail.com>,
Hannu Krosing <hannuk@google.com>, Robert Haas <robertmhaas@gmail.com>, Pavel Stehule <pavel.stehule@gmail.com>, Michael Paquier <michael@paquier.xyz>,
torikoshia <torikoshia@oss.nttdata.com>, Atsushi Torikoshi <atorik@gmail.com>,
Tatsuro Yamada <tatsuro.yamada.tf@nttcom.co.jp>, Tomas Vondra <tomas.vondra@2ndquadrant.com>,
Evgeny Efimkin <efimkin@yandex-team.ru>, PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Date: 2021-04-23T10:11:31Z
Lists: pgsql-hackers
On Fri, Apr 23, 2021 at 12:04 PM Fujii Masao <masao.fujii@oss.nttdata.com> wrote: > > > > On 2021/04/23 18:46, Magnus Hagander wrote: > > On Fri, Apr 23, 2021 at 9:10 AM Fujii Masao <masao.fujii@oss.nttdata.com> wrote: > >> > >> > >> > >> On 2021/04/22 18:23, Julien Rouhaud wrote: > >>> On Thu, Apr 22, 2021 at 12:28:11AM +0900, Fujii Masao wrote: > >>>> > >>>> I found another small issue in pg_stat_statements docs. The following > >>>> description in the docs should be updated so that toplevel is included? > >>>> > >>>>> This view contains one row for each distinct database ID, user ID and query ID > >>> > >>> Indeed! I'm adding Magnus in Cc. > >>> > >>> PFA a patch to fix at, and also mention that toplevel will only > >>> contain True values if pg_stat_statements.track is set to top. > >> > >> Thanks for the patch! LGTM. > > > > Agreed, in general. But going by the example a few lines down, I > > changed the second part to: > > True if the query was executed as a top level statement > > + (if <varname>pg_stat_statements.track</varname> is set to > > + <literal>all</literal>, otherwise always false) > > Isn't this confusing? Users may mistakenly read this as that the toplevel > column always indicates false if pg_stat_statements.track is not "all". Hmm. I think you're right. It should say "always true", shouldn't it? So not just confusing, but completely wrong? :) -- Magnus Hagander Me: https://www.hagander.net/ Work: https://www.redpill-linpro.com/
Commits
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Clarify description of pg_stat_statements columns
- b4deefc39b93 15.0 landed
- 3b57d5af7435 14.0 landed
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Fix wording in description of pg_stat_statements.toplevel
- f9e6d00df029 14.0 landed
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Mention that toplevel is part of pg_stat_statements key.
- 7531fcb1fcf5 14.0 landed
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adjust query id feature to use pg_stat_activity.query_id
- 9660834dd8bf 14.0 landed
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Update copyright for 2021
- ca3b37487be3 14.0 cited
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Take the statistics collector out of the loop for monitoring backends'
- b13c9686d084 8.2.0 cited