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Re: Basic Q on superfluous primary keys

From: Richard Huxton <dev(at)archonet(dot)com>
To: "Craig A(dot) James" <cjames(at)modgraph-usa(dot)com>
Cc: pgsql-performance(at)postgresql(dot)org
Subject: Re: Basic Q on superfluous primary keys
Date: 2007-04-18 09:22:36
Message-ID: 4625E35C.2060708@archonet.com (view raw or flat)
Thread:
Lists: pgsql-performance
Craig A. James wrote:

> Since we're only aggregating information, we have 
> no control over the data that these companies provide.

And at the end of the day that's the root of the problem. It's easy to 
be lulled into "well it looks like a primary key" rather than being able 
to guarantee it.

-- 
   Richard Huxton
   Archonet Ltd

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