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Data Bases > Informix > Re: reliability...
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Re: reliability?

by "piotrek" <piotrUSUN_T_O110@[EMAIL PROTECTED] > May 7, 2008 at 05:17 PM

> The AND is being dropped. It would seem that the optimizer looks for
> simplifications that can be applied and in this case is dropping the
more
>  > restritive filter. Of course I could be giving the optimizer too much
> credit.

exectly - just changing the order of filter is enought to change ther
result
SELECT MIN(colno) FROM syscolumns WHERE colno>1 AND colno>=1
gives 2
 




 2 Posts in Topic:
RE: reliability?
"Denham, Mark"   2008-05-07 11:13:16 
Re: reliability?
"piotrek" <p  2008-05-07 17:17:10 

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tan12V112 Mon Oct 13 16:10:52 CDT 2008.