On Mon, Aug 20, 2012 at 4:27 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Robert Haas <robertmhaas@gmail.com> writes:
>>>> On the other hand, the problem of the FSM taking up 24kB for an 8kB
>>>> table seems clearly worth fixing, but I don't think I have the cycles
>>>> for it at present. Maybe a TODO is in order.
>
>> I certainly think that'd be worth a TODO. Whether the rest of this is
>> worth worrying about I'm not sure.
>
> Surely we could just prevent creation of the FSM until the table has
> reached at least, say, 10 blocks.
>
> Any threshold beyond one block would mean potential space wastage,
> but it's hard to get excited about that until you're into the dozens
> of pages.
I dunno, I think one-row tables are pretty common.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company