On Tue, Nov 10, 2009 at 2:56 PM, Marko Tiikkaja
<marko.tiikkaja@cs.helsinki.fi> wrote:
> (Sorry, forgot to CC the list)
>
> Tom Lane wrote:
>>
>> This doesn't really seem like a good idea from here. You're changing
>> a decision that has something like twenty years' standing in the code,
>> for no real gain. AFAICS this is just going to move the special cases
>> from point A to point B.
>
> Right, but this way you only have to special-case in grouping_planner(),
> and targetList always means the same thing.
I haven't read through the patch but I can say the existing
arrangement certainly seemed strange to me when I first saw it.
--
greg
