On Mon, Jun 13, 2016 at 7:17 PM, Robert Haas <robertmh...@gmail.com> wrote:
> On Mon, Jun 13, 2016 at 3:18 AM, Amit Kapila <amit.kapil...@gmail.com>
> > In create_grouping_paths(), we are building partial_grouping_path and
> > is used for gather path and other grouping paths (for partial paths).
> > However, we don't use it for partial path list and sort path due to
> > path target for Sort path is different from what we have expected.  Is
> > a problem in applying  partial_grouping_path for partial pathlist?
> > Attached patch just does that and I don't see error with patch.
> It doesn't seem like a good idea to destructive modify
> input_rel->partial_pathlist.  Applying the projection to each path
> before using it would probably be better.

Do you mean to have it when we generate a complete GroupAgg Path atop of
the cheapest partial path?

With Regards,
Amit Kapila.
EnterpriseDB: http://www.enterprisedb.com

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