On Sat, Mar 30, 2024 at 12:47 PM arun chirappurath <arunsnmimt@xxxxxxxxx> 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.