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From: Joshua D. Drake <[email protected]>
To: Gregory Stark <[email protected]>
Cc: Tom Lane <[email protected]>
Cc: Stephan Szabo <[email protected]>
Cc: Chris Mair <[email protected]>
Cc: MAR - Secretariado Geral <[email protected]>
Cc: [email protected]
Subject: Re: Foreign keys
Date: Sun, 10 Sep 2006 09:40:51 -0700
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <000601c6d463$208cb160$0500a8c0@SECGERAL>
	<[email protected]>
	<[email protected]>
	<[email protected]>
	<[email protected]>
	<[email protected]>


> In any case the same logic that leads to it being desirable to report all the
> errors to the user in a UI and not just report them one by one also applies to
> the database. I'm not sure it's the most important issue in the world, but it
> does seem like a "it would be nice" feature if it reported all the errors in
> the statement, not just the first one it finds.
> 

Seems kind of extraneous to me. I am guessing it would cause yet further 
overhead with our foreign key checks.

My testing shows that the use of foreign keys on high velocity single 
transaction loads, can cause easily a 50% reduction in performance. Why 
add to that? What we need to be doing is finding a way to decrease the 
impact of foreign key checks.

Sincerely,

Joshua D. Drake

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