diff --git a/doc/src/sgml/maintenance.sgml b/doc/src/sgml/maintenance.sgml index d4b3f51d557..4f7c4d78243 100644 --- a/doc/src/sgml/maintenance.sgml +++ b/doc/src/sgml/maintenance.sgml @@ -1,5 +1,5 @@ @@ -542,10 +542,20 @@ vacuum threshold = vacuum base threshold + vacuum scale factor * number of tuple values, the vacuum_cost_limit and vacuum_cost_delay values will be used instead. The other parameter, pg_autovacuum.enabled, - can be used to instruct the autovacuum daemon to skip any particular table - by setting it to false. + can be used to instruct the autovacuum daemon to skip any particular table + by setting it to false. + + + The contents of the pg_autovacuum system + catalog are currently not saved in database dumps created by + the tools pg_dump and pg_dumpall. + If you need to preserve them across a dump/reload cycle, make sure you + dump the catalog manually. + + +