Re[3]: to_number question

From: Jonathan Gennick <jonathan_at_gennick.com>
Date: Fri, 16 Jul 2004 10:31:21 -0400
Message-ID: <511073661633.20040716103121@gennick.com>

Friday, July 16, 2004, 9:55:42 AM, Stephane Faroult (sfaroult_at_roughsea.com) wrote:

SF> On this point alone I wouldn't say that optimization changes the result. We
SF> have here a 3-valued logic again :
SF> - expected results
SF> - wrong results
SF> - failure

Yes, this is one way of looking at the issue. And until I put together some sort of clean, conceptual, mental model for thinking about subqueries that also accounts for the behavior Stephen encountered, I won't be able to rest. This is very important to me. Ultimately, I need to go away and reflect for awhile, do some research, etc.

Oh, and while I *understand* the behavior, I may not, in the end, *agree* with it, and in that sense I could end up in the same boat as Date, who has been vainly complaining about nulls for as long as I can remember. Perhaps 20 years from now I will be that lone voice in the wilderness who is ranting about subqueries <grin>.

I'm keeping an open mind at the moment though.

Best regards,

Jonathan Gennick --- Brighten the corner where you are http://Gennick.com * 906.387.1698 * mailto:jonathan@gennick.com

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Received on Fri Jul 16 2004 - 09:28:49 CDT