On 18 November 2014 05:19, Simon Riggs <si...@2ndquadrant.com> wrote:
> On 14 November 2014 11:02, Kouhei Kaigai <kai...@ak.jp.nec.com> wrote: > > > I'd like to throw community folks a question. > > Did someone have a discussion to the challenge of aggregate push-down > across > > relations join in the past? It potentially reduces number of rows to be > joined. > > If we already had, I'd like to check up the discussion at that time. > > Yes, I was looking at aggregate pushdown. I think it needs the same > changes to aggregates discussed upthread. > > I have something that I've been working on locally. It's far from ready, but it does work in very simple cases, and shows a nice performance boost. I'll start another thread soon and copy you both in. Perhaps we can share some ideas. Regards David Rowley
