Re: Feature improvement: can we add queryId for pg_catalog.pg_stat_activity view?
legrand legrand <legrand_legrand@hotmail.com>
From: legrand legrand <legrand_legrand@hotmail.com>
To: pgsql-hackers@postgresql.org
Date: 2019-08-05T17:30:29Z
Lists: pgsql-hackers
Kyotaro Horiguchi-4 wrote > At Sun, 4 Aug 2019 00:04:01 -0700 (MST), legrand legrand < > legrand_legrand@ > > wrote in < > 1564902241482-0.post@.nabble >> >> > However having the nested queryid in >> > pg_stat_activity would be convenient to track >> > what is a long stored functions currently doing. >> >> +1 >> >> And this could permit to get wait event sampling per queryid when >> pg_stat_statements.track = all > > I'm strongly on this side emotionally, but also I'm on Tom and > Andres's side that exposing querid that way is not the right > thing. > > Doing that means we don't need exact correspondence between > top-level query and queryId (in nested or multistatement queries) > in this patch. pg_stat_statements will allow us to do the same > thing by having additional uint64[MaxBackends] array in > pgssSharedState, instead of expanding PgBackendStatus array in > core by the same size. > > regards. > > -- > Kyotaro Horiguchi > NTT Open Source Software Center Hi Kyotaro, Thank you for this answer. What you propose here is already available Inside pg_stat_sql_plans extension (a derivative from Pg_stat_statements and pg_store_plans) And I’m used to this queryid behavior with top Level Queries... My emotion was high but I will accept it ! Regards PAscal -- Sent from: https://www.postgresql-archive.org/PostgreSQL-hackers-f1928748.html
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