From: | Richard_D_Levine(at)raytheon(dot)com |
---|---|
To: | Frank Wiles <frank(at)wiles(dot)org> |
Cc: | Josh Berkus <josh(at)agliodbs(dot)com>, pgsql-performance(at)postgresql(dot)org, pgsql-performance-owner(at)postgresql(dot)org |
Subject: | Re: Low Performance for big hospital server .. |
Date: | 2005-01-06 18:33:00 |
Message-ID: | OFFAF4E49E.8472B1FE-ON05256F81.006575F6@ftw.us.ray.com |
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Thread: | |
Lists: | pgsql-performance |
In my younger days I denormalized a database for performance reasons and
have been paid for it dearly with increased maintenance costs. Adding
enhanced capabilities and new functionality will render denormalization
worse than useless quickly. --Rick
Frank Wiles
<frank(at)wiles(dot)org> To: Josh Berkus <josh(at)agliodbs(dot)com>
Sent by: cc: pgsql-performance(at)postgresql(dot)org
pgsql-performance-owner(at)pos Subject: Re: [PERFORM] Low Performance for big hospital server ..
tgresql.org
01/06/2005 12:12 PM
On Thu, 6 Jan 2005 09:06:55 -0800
Josh Berkus <josh(at)agliodbs(dot)com> wrote:
> I can't tell you how many times I've seen this sort of thing. And
> the developers always tell me "Well, we denormalized for performance
> reasons ... "
Now that's rich. I don't think I've ever seen a database perform
worse after it was normalized. In fact, I can't even think of a
situation where it could!
---------------------------------
Frank Wiles <frank(at)wiles(dot)org>
http://www.wiles.org
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