pg_stat_kcache(OUT queryid bigint, OUT top boolean, OUT userid oid, OUT dbid oid, OUT plan_reads bigint, OUT plan_writes bigint, OUT plan_user_time double precision, OUT plan_system_time double precision, OUT plan_minflts bigint, OUT plan_majflts bigint, OUT plan_nswaps bigint, OUT plan_msgsnds bigint, OUT plan_msgrcvs bigint, OUT plan_nsignals bigint, OUT plan_nvcsws bigint, OUT plan_nivcsws bigint, OUT exec_reads bigint, OUT exec_writes bigint, OUT exec_user_time double precision, OUT exec_system_time double precision, OUT exec_minflts bigint, OUT exec_majflts bigint, OUT exec_nswaps bigint, OUT exec_msgsnds bigint, OUT exec_msgrcvs bigint, OUT exec_nsignals bigint, OUT exec_nvcsws bigint, OUT exec_nivcsws bigint)