diff --git a/doc/src/sgml/maintenance.sgml b/doc/src/sgml/maintenance.sgml index 5eacf5fcfd3..40eecdc376e 100644 --- a/doc/src/sgml/maintenance.sgml +++ b/doc/src/sgml/maintenance.sgml @@ -1,4 +1,4 @@ - + Routine Database Maintenance Tasks @@ -262,12 +262,19 @@ - Recommended practice for most sites is to schedule a database-wide - ANALYZE once a day at a low-usage time of day; this can - usefully be combined with a nightly VACUUM. However, - sites with relatively slowly changing table statistics might find that - this is overkill, and that less-frequent ANALYZE runs - are sufficient. + Fortunately, autovacuum () monitors table + activity and performs ANALYZEs when necessary. This + eliminates the need for administrators to manually schedule + ANALYZE. + + + + For those not using autovacuum, one approach is to schedule a + database-wide ANALYZE once a day at a low-usage time of + day; this can usefully be combined with a nightly VACUUM. + However, sites with relatively slowly changing table statistics might + find that this is overkill, and that less-frequent ANALYZE + runs are sufficient.