On Sun, 2006-03-05 at 00:04 -0500, Neil Conway wrote:
> Okay, attached is a revised patch that implements this.
Applied.
-Neil
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TIP 9: In versions below 8.0, the planner will ignore your desire to
choose an index sc
On Sat, 2006-03-04 at 21:21 -0500, Tom Lane wrote:
> 1. For each ORDER BY item:
> 1a. Find a matching GROUP BY item.
> (Break out of loop if no match.)
> 1b. Add it to the output list with ORDER BY item's ordering op.
> 1c. Remove the matched item from the GROUP BY lis
Neil Conway <[EMAIL PROTECTED]> writes:
> Per recent discussion on -hackers, we should sometimes try to reorder
> the columns of the grouping clause to avoid redundant sorts. The
> optimizer is not currently capable of doing this, so this patch
> implements a simple hack in the analysis phase (tran
