Re: Access issue for system queries

On Sat, Mar 30, 2024 at 12:47 PM arun chirappurath <arunsnmimt(at)gmail(dot)com> wrote:
>
> I have granted access to pg_read_all_stats and pg_read_allsettings to user..still they are not able to receive results from this query.its empty..we can run SELECT * FROM pg_stat_statements alone..but not below statement..what could be the reason?
>
> WITH statements AS (
> SELECT * FROM pg_stat_statements pss
> JOIN pg_roles pr ON (userid=oid)
> WHERE rolname = current_user
> )
> SELECT calls,
> min_exec_time,
> max_exec_time,
> mean_exec_time,
> stddev_exec_time,
> (stddev_exec_time/mean_exec_time) AS coeff_of_variance,
> query
> FROM statements
> WHERE calls > 500
> AND shared_blks_hit > 0
> ORDER BY mean_exec_time DESC
> LIMIT 10

Probably because your current user didn't run any query more than 500
times? Or maybe because you have some other tools that calls
pg_stat_statements_reset() frequently enough.