>>>>> "Tom" == Tom Lane <tgl@sss.pgh.pa.us> writes:
>> Hrm, ok. So for the near future, we should leave it more or less>> as-is? We don't have a timescale yet, but it's
ourintention to>> submit a hashagg support patch for grouping sets as soon as time>> permits.
Tom> Well, mumble. I keep saying that I want to tackle path-ificationTom> in that area, and I keep not finding the
timeto actually do it.Tom> So I'm hesitant to tell you that you should wait on it. ButTom> certainly I think that
it'llbe a lot easier to get hashaggTom> costing done in that framework than in what currently exists.
Incidentally, the most obvious obstacle to better planning of grouping
sets in the sorted cases is not so much how to pick paths in
grouping_planner itself, but rather the fact that query_planner wants to
be given only one sort order. Is there any prospect for improvement
there?
--
Andrew (irc:RhodiumToad)