On Wed, 31 Oct 2001, Leong, Fushan wrote:
> delete them is bad.. but you can not let them grow forever........
>
> When and how to clean up these files?
You should VACUUM ANALYZE occasionally depending your rate of
updates and deletes on your tables. I think you'll also need
to use REINDEX when you want to shrink the index space. I
believe there's information about these commands in the
admin documentation.