Re: Force optimizer to use hash/nl/merge join?

Поиск
Список
Период
Сортировка
От Amit Kapila
Тема Re: Force optimizer to use hash/nl/merge join?
Дата
Msg-id CAA4eK1LvOA=_cQTbbi9RKG7t4RwtSszdCRoHR1jreN3ny+q4aQ@mail.gmail.com
обсуждение исходный текст
Ответ на Force optimizer to use hash/nl/merge join?  (Zhan Li <zhanli89@gmail.com>)
Список pgsql-hackers
On Mon, Nov 18, 2013 at 7:58 PM, Zhan Li <zhanli89@gmail.com> wrote:
> Hi All,
>
> Is there any way to force the optimizer to use a specific join operator? For
> example, in SQL Server, I can do this way
>
> select * from (A inner hash join B on A.a = B.b) inner loop join C on A.a =
> C.c
>
> I did some search but didn't find PostgreSQL had similar join hints except
> for enable_* setting which doesn't help in my case.

PostgreSQL doesn't have join hints.

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



В списке pgsql-hackers по дате отправления:

Предыдущее
От: Amit Kapila
Дата:
Сообщение: Re: ALTER SYSTEM SET command to change postgresql.conf parameters (RE: Proposal for Allow postgresql.conf values to be changed via SQL [review])
Следующее
От: Robert Haas
Дата:
Сообщение: Re: inherit support for foreign tables