Re: Aggregate Push Down - Performing aggregation on foreign server
| От | Pavel Stehule |
|---|---|
| Тема | Re: Aggregate Push Down - Performing aggregation on foreign server |
| Дата | |
| Msg-id | CAFj8pRB6+y6R3unWOiucuiy3b10qTEYzihirCUhqU87R-ozTDA@mail.gmail.com обсуждение исходный текст |
| Ответ на | Re: Aggregate Push Down - Performing aggregation on foreign server (Robert Haas <robertmhaas@gmail.com>) |
| Ответы |
Re: Aggregate Push Down - Performing aggregation on foreign
server
|
| Список | pgsql-hackers |
2016-08-31 9:00 GMT+02:00 Robert Haas <robertmhaas@gmail.com>:
On Wed, Aug 31, 2016 at 11:56 AM, Pavel Stehule <pavel.stehule@gmail.com> wrote:
> It is pity - lot of performance issues are related to this missing feature.
I don't think you are being very clear about what feature you are
talking about. The feature that Jeevan has implemented is pushing
aggregates to the remote side when postgres_fdw is in use. The
feature you are talking about is evidently something else, but you
haven't really said what it is. Or not in a way that I can
understand.
yes, It is not clear if FDW aggregate push down can be implemented together with internal aggregate push down. Aggregate push down ~ try to aggregate first when it is possible
Regards
Pavel
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
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