Re: Re[2]: to_number question

From: Tanel Põder <tanel.poder.003_at_mail.ee>
Date: Thu, 15 Jul 2004 16:33:19 +0300
Message-ID: <057601c46a70$4b2d7c10$63a423d5@porgand>

> This begs the question of how the optimizer should decide
> whether it's safe to merge a subquery and main query.
> Clearly, the optimizer seems to have made the wrong call
> in the case of the query we've been talking about.

I actually agree with both sides:

• with Wolfgang that a true relational database is meant to work with "relational" queries and doesn't have to support any ill constructions which users come up with.
• on the other hand I definitely agree with Stephen and Jonathan that a $40000 per CPU modern commercial database product should be able to work around this kind of issue by itself.

Tanel.

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Received on Thu Jul 15 2004 - 08:30:06 CDT