"Gregory Wood" <gregw@com-stock.com> writes:
>> If your overall database is large then you might need to increase the
>> size of the free space map (see postgresql.conf).
> I haven't seen any good documentation on what exactly this does, how the
> settings affect performance, or recommended values.
> Does this information exist anywhere?
Nope. Feel free to run some experiments and create some recommendations
;-)
regards, tom lane