Re: upper planner path-ification
Tom Lane <tgl@sss.pgh.pa.us>
From: Tom Lane <tgl@sss.pgh.pa.us>
To: Andrew Gierth <andrew@tao11.riddles.org.uk>
Cc: Robert Haas <robertmhaas@gmail.com>,
"pgsql-hackers\@postgresql.org" <pgsql-hackers@postgresql.org>
Date: 2015-05-17T15:51:10Z
Lists: pgsql-hackers
Andrew Gierth <andrew@tao11.riddles.org.uk> writes: > "Tom" == Tom Lane <tgl@sss.pgh.pa.us> writes: > Tom> So I'm all for refactoring, but I think it will happen as a natural > Tom> byproduct of path-ification, and otherwise would be rather forced. > 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 our intention to submit a > hashagg support patch for grouping sets as soon as time permits. Well, mumble. I keep saying that I want to tackle path-ification in that area, and I keep not finding the time to actually do it. So I'm hesitant to tell you that you should wait on it. But certainly I think that it'll be a lot easier to get hashagg costing done in that framework than in what currently exists. regards, tom lane