On Mon, Mar 28, 2011 at 12:29 AM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Robert Haas <robertmhaas@gmail.com> writes:
>> I think we've had a number of pieces of evidence that suggest that
>> extending 8kB at a time is too costly, but I agree with Greg that the
>> idea of extending an arbitrarily large table by 10% at a time is
>> pretty frightening - that could involve allocating a gigantic amount
>> of space on a big table. =A0I would be inclined to do something like
>> extend by 10% of table or 1MB, whichever is smaller.
>
> Sure, something like that sounds sane, though the precise numbers
> need some validation.
Yeah.
>> ... And a 1MB extension is probably also small enough
>> that we can do it in the foreground without too much of a hiccup.
>
> Less than convinced about this.
Well, I guess we can always try it and see.
--=20
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
