From: | Josh Berkus <josh(at)agliodbs(dot)com> |
---|---|
To: | "Ken Egervari" <ken(at)upfactor(dot)com> |
Cc: | <pgsql-performance(at)postgresql(dot)org> |
Subject: | Re: Help with tuning this query |
Date: | 2005-03-03 05:36:23 |
Message-ID: | 200503022136.23275.josh@agliodbs.com |
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Thread: | |
Lists: | pgsql-hackers-win32 pgsql-performance |
Ken,
> I've tried to use Dan Tow's tuning method and created all the right indexes
> from his diagraming method, but the query still performs quite slow both
> inside the application and just inside pgadmin III. Can anyone be kind
> enough to help me tune it so that it performs better in postgres? I don't
> think it's using the right indexes, or maybe postgres needs special
> treatment.
FWIW, I picked up Dan Tow's book to give it a read, and they guy isn't
qualified to author "SQL Tuning". You should chuck that book, it won't help
you -- not with Oracle or SQL Server, and certainly not with PostgreSQL.
O'Reilly continues to have trouble turning out quality database books.
Also, if you *were* using Dan's method, you'd be driving off Person, not
Shipment.
--
Josh Berkus
Aglio Database Solutions
San Francisco
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