Re: [HACKERS] Partition-wise aggregation/grouping

On Thu, Mar 22, 2018 at 6:15 AM, Jeevan Chalke
<jeevan.chalke@enterprisedb.com> wrote:
> Leeks cleaner now. Thanks for refactoring it.
>
> I have merged these changes and flatten all previuos changes into the main
> patch.

Committed 0001-0005.  I made a few further modifications.  These were
mostly cosmetic, but with two exceptions:

1. I moved one set_cheapest() call to avoid doing that twice for the
top-level grouped_rel.

2. I removed the logic to set partition properties for grouped_rels.
As far as I can see, there's nothing that needs this.  It would be
important if we wanted subsequent planning stages to be able to do
partition-wise stuff, e.g. when doing window functions or setops, or
at higher query levels.  Maybe we'll have that someday; until then, I
think this is just a waste of cycles.

-- 
Robert Haas
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