On Tue, Oct 17, 2017 at 7:13 PM, Dilip Kumar <dilipbal...@gmail.com> wrote:

> On Fri, Oct 13, 2017 at 12:06 PM, Jeevan Chalke
> <jeevan.cha...@enterprisedb.com> wrote:
> >
> While playing around with the patch I have noticed one regression with
> the partial partition-wise aggregate.
> I am consistently able to reproduce this on my local machine.
> Scenario: Group by on non-key column and only one tuple per group.

I didn't get what you mean by regression here. Can you please explain?

I see that PWA plan is selected over regular plan when enabled on the basis
of costing.
Regular planning need a Result node due to which costing increases where as
PWA don't need that and thus wins.

Jeevan Chalke
Technical Architect, Product Development
EnterpriseDB Corporation
The Enterprise PostgreSQL Company

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