| From: | Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> |
|---|---|
| To: | Zhan Li <zhanli89(at)gmail(dot)com> |
| Cc: | pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Force optimizer to use hash/nl/merge join? |
| Date: | 2013-11-18 14:33:54 |
| Message-ID: | CAA4eK1LvOA=_cQTbbi9RKG7t4RwtSszdCRoHR1jreN3ny+q4aQ@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Mon, Nov 18, 2013 at 7:58 PM, Zhan Li <zhanli89(at)gmail(dot)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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