Re: Aggregate ORDER BY patch

On Sun, Nov 15, 2009 at 11:23 PM, Andrew Gierth
<andrew@tao11.riddles.org.uk> wrote:
> Future performance enhancements (which I have no particular plans to
> tackle) would involve having the planner consult the desired aggregate
> orderings and estimating the cost of sorting as opposed to the cost of
> producing a plan with the input already ordered. Also combining the
> sort step for aggregates that share a single ordering.

Those both seem like pretty important things. Do you have an idea how
to go about doing them?


-- 
greg