| From: | Karim Nassar <karim(dot)nassar(at)acm(dot)org> |
|---|---|
| To: | Gnanavel S <s(dot)gnanavel(at)gmail(dot)com> |
| Cc: | pgsql-performance(at)postgresql(dot)org |
| Subject: | Re: Two queries are better than one? |
| Date: | 2005-07-29 04:21:38 |
| Message-ID: | 1122610899.11862.63.camel@localhost.localdomain |
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| Thread: | |
| Lists: | pgsql-performance |
On Fri, 2005-07-29 at 09:41 +0530, Gnanavel S wrote:
>
> Joined:
>
> test=> explain analyze
> test-> SELECT cli_name,order.*
> test-> FROM order
> test-> JOIN client ON (ord_client = cli_code)
> test-> WHERE ord_batch='343B' AND
> ord_id='12-645';
>
> where is the cli_code condition in the above query?
I don't understand the question. ord_client is the client code, and
cli_code is the client code, for their respective tables. batch/id is
unique, so there is only one record from order, and only one client to
associate.
Clearer?
--
Karim Nassar <karim(dot)nassar(at)acm(dot)org>
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