From: Maria Arias de Reyna <marias@emergya.es>
To: pgsql-performance@postgresql.org
Subject: Re: Which Join is better
Date: Tue, 2 Aug 2011 08:47:02 +0200
Message-ID: <201108020847.03199.marias@emergya.es> (raw)
In-Reply-To: <4E379C43.7020805@orkash.com>
References: <4E379C43.7020805@orkash.com>
El Martes 02 Agosto 2011, Adarsh Sharma escribió:
> Dear all,
>
> Just want to know which join is better for querying data faster.
>
> I have 2 tables A ( 70 GB ) & B ( 7 MB )
>
> A has 10 columns & B has 3 columns.Indexes exist on both tables's ids.
>
> select p.* from table A p, B q where p.id=q.id
>
> or
>
> select p.* from table B q , A p where q.id=p.id
>
>
> Thanks
Hi Adarsh,
What does a "EXPLAIN ANALYZE" say after a VACCUM?
--
María Arias de Reyna Domínguez
Área de Operaciones
Emergya Consultoría
Tfno: +34 954 51 75 77 / +34 607 43 74 27
Fax: +34 954 51 64 73
www.emergya.es
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To: pgsql-performance@postgresql.org
Cc: marias@emergya.es
Subject: Re: Which Join is better
In-Reply-To: <201108020847.03199.marias@emergya.es>
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