Re: filtering after join

From: andrew <andrew(dot)ylzhou(at)gmail(dot)com>
To: pgsql-sql(at)postgresql(dot)org
Subject: Re: filtering after join
Date: 2006-01-27 09:10:31
Message-ID: 29d3b0b90601270110w645eab52k41ea6e385f297ae4@mail.gmail.com
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I can see the final plan by using the EXPLAIN command. But I want to
know the procedure of the planner in handling nesting queries. Can you
direct me to the corresponding part of the code and/or the documents?
Thanks.

On 1/26/06, Peter Eisentraut <peter_e(at)gmx(dot)net> wrote:
> andrew wrote:
> > How will the query planner do for a nesting query? Treat the
> > subqueries as multiple queries and then link them together?
> > where can I find the information (codes or documents)?
>
> Look at the execution plan using the EXPLAIN command.
>
> --
> Peter Eisentraut
> http://developer.postgresql.org/~petere/
>

--
andrew

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