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| -rw-r--r-- | doc/src/sgml/monitoring.sgml | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/doc/src/sgml/monitoring.sgml b/doc/src/sgml/monitoring.sgml index 60a2026b0b0..e5d622d5147 100644 --- a/doc/src/sgml/monitoring.sgml +++ b/doc/src/sgml/monitoring.sgml @@ -5510,6 +5510,17 @@ SELECT pid, wait_event_type, wait_event FROM pg_stat_activity WHERE wait_event i </tgroup> </table> + <warning> + <para> + Using <function>pg_stat_reset()</function> also resets counters that + autovacuum uses to determine when to trigger a vacuum or an analyze. + Resetting these counters can cause autovacuum to not perform necessary + work, which can cause problems such as table bloat or out-dated + table statistics. A database-wide <command>ANALYZE</command> is + recommended after the statistics have been reset. + </para> + </warning> + <para> <function>pg_stat_get_activity</function>, the underlying function of the <structname>pg_stat_activity</structname> view, returns a set of records |