In response to Jean-David Beyer <jeandavid8@xxxxxxxxxxx>: > I have this turned on, and if I look at the log, it runs once a minute, > which is fine. > > But what does it do? I.e, it runs VACUUM, but does it also do an analyze? Yes. If you turn up the debugging level, you'll see detailed log messages about its activities. There were discussions on other lists about improving autovacuum's log messages, I'm pretty sure it will log more helpful information in 8.3. -- Bill Moran Collaborative Fusion Inc. http://people.collaborativefusion.com/~wmoran/ wmoran@xxxxxxxxxxxxxxxxxxxxxxx Phone: 412-422-3463x4023 ---------------------------(end of broadcast)--------------------------- TIP 5: don't forget to increase your free space map settings