Robert Haas <[email protected]> writes:
> On Tue, Dec 1, 2009 at 11:39 AM, Greg Sabino Mullane <[email protected]>
> wrote:
>> What about 14? Could we at least raise it to 14? 1/2 :)
> I doubt we can raise it at all without lying to ourselves about the
> likely results of so doing. The GEQO planning times are in the low
> double digits of milliseconds. My apps typically have a budget of at
> most ~200 ms to plan and execute the query, and I'm not always
> operating on empty tables.
The reason this is a configurable parameter is so that people can tune
it to their own needs. I think the current default fits all right with
our usual policy of being conservative about hardware requirements.
regards, tom lane
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