Re: Combining Aggregates - Mailing list pgsql-hackers

From Robert Haas
Subject Re: Combining Aggregates
Date
Msg-id CA+TgmoaBeSoUf7i4fegRruF-CazAatqFV0E1QgLjEqEUGeWDiw@mail.gmail.com
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In response to Re: Combining Aggregates  (Haribabu Kommi <kommi.haribabu@gmail.com>)
List pgsql-hackers
On Wed, Jan 20, 2016 at 9:33 PM, Haribabu Kommi
<kommi.haribabu@gmail.com> wrote:
> Here I attached updated patch of parallel aggregate based on the latest
> changes in master. Still it lack of cost comparison of normal aggregate to
> parallel aggregate because of difficulty. This cost comparison is required
> in parallel aggregate as this is having some regression when the number
> of groups are less in the query plan.

Please keep this on its own thread rather than colonizing this one.

-- 
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company



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