Re: Force optimizer to use hash/nl/merge join? - Mailing list pgsql-hackers

From Amit Kapila
Subject Re: Force optimizer to use hash/nl/merge join?
Date
Msg-id CAA4eK1LvOA=_cQTbbi9RKG7t4RwtSszdCRoHR1jreN3ny+q4aQ@mail.gmail.com
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In response to Force optimizer to use hash/nl/merge join?  (Zhan Li <zhanli89@gmail.com>)
List 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



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