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Re: join query performance

From: Chris <dmagick(at)gmail(dot)com>
To: petchimuthu lingam <spmlingam(at)gmail(dot)com>
Cc: pgsql-php(at)postgresql(dot)org
Subject: Re: join query performance
Date: 2008-03-09 23:42:33
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-performancepgsql-php
petchimuthu lingam wrote:
> In a select query i have used the join conditions, will it affect query 
> performance.
> Explicitly I didn't used the join command, Will it make any difference.

It'll make sure you don't miss any join conditions between two tables so 
it'll be helpful in that respect, I didn't read your whole query but 
with a 7 table join it's very easy to miss doing a match on one or more 

It shouldn't take more than a couple of minutes to rewrite your query 
and find out the answers..

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