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* [ADMIN] Is it safe to run pg_stat_reset() i Prod?
@ 2018-12-17 11:41 Gustav Karlsson <gustav.karlsson@bekk.no>
0 siblings, 2 replies; 3+ messages in thread
From: Gustav Karlsson @ 2018-12-17 11:41 UTC (permalink / raw)
To: pgsql-admin
Hi,
Am tracking unused indices and wondering if it is safe to run pg_stat_reset() i production? I.e. will pg_stat_reset() affect stats used by the query planner in any way which could affect performance?
Regards,
Gustav
^ permalink raw reply [nested|flat] 3+ messages in thread
* Re: [ADMIN] Is it safe to run pg_stat_reset() i Prod?
@ 2018-12-17 12:33 Shreeyansh Dba <shreeyansh2014@gmail.com>
parent: Gustav Karlsson <gustav.karlsson@bekk.no>
1 sibling, 0 replies; 3+ messages in thread
From: Shreeyansh Dba @ 2018-12-17 12:33 UTC (permalink / raw)
To: Gustav Karlsson <gustav.karlsson@bekk.no>; +Cc: pgsql-admin
Hi Gustav Karlsson,
It only resets the stats for the current database, not the cluster wide
stats - pg_database is cluster wide.
Specially when values associated to inserts, updates, deleted, etc. In
pg_stat_user_* get a new value after running pg_stat_reset().
<http://www.shreeyansh.com;
On Mon, Dec 17, 2018 at 5:11 PM Gustav Karlsson <gustav.karlsson@bekk.no>
wrote:
> Hi,
>
> Am tracking unused indices and wondering if it is safe to run
> pg_stat_reset() i production? I.e. will pg_stat_reset() affect stats used
> by the query planner in any way which could affect performance?
>
> Regards,
> Gustav
>
>
>
^ permalink raw reply [nested|flat] 3+ messages in thread
* Re: [ADMIN] Is it safe to run pg_stat_reset() i Prod?
@ 2018-12-17 14:28 Tom Lane <tgl@sss.pgh.pa.us>
parent: Gustav Karlsson <gustav.karlsson@bekk.no>
1 sibling, 0 replies; 3+ messages in thread
From: Tom Lane @ 2018-12-17 14:28 UTC (permalink / raw)
To: Gustav Karlsson <gustav.karlsson@bekk.no>; +Cc: pgsql-admin
Gustav Karlsson <gustav.karlsson@bekk.no> writes:
> Am tracking unused indices and wondering if it is safe to run pg_stat_reset() i production? I.e. will pg_stat_reset() affect stats used by the query planner in any way which could affect performance?
The planner doesn't look at any of that data.
regards, tom lane
^ permalink raw reply [nested|flat] 3+ messages in thread
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2018-12-17 11:41 [ADMIN] Is it safe to run pg_stat_reset() i Prod? Gustav Karlsson <gustav.karlsson@bekk.no>
2018-12-17 12:33 ` Shreeyansh Dba <shreeyansh2014@gmail.com>
2018-12-17 14:28 ` Tom Lane <tgl@sss.pgh.pa.us>
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