Karl Denninger <karl@denninger.net> writes:
> But... .shouldn't autovacuum prevent this? Is there some way to look in
> a log somewhere and see if and when the autovacuum is being run - and on
> what?
There's no log messages (at the default log verbosity anyway). But you
could look into the pg_stat views for the last vacuum time for each table.
regards, tom lane