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Message Posted: Fri, 12 Sep 2003 @ 18:06:55 GMT


     
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Subj:   Re: Will an Index be used with Derived Tables
 
From:   Dieter Noeth

Summers, Scott wrote:

  So for those of use still pre v2r5, what does determine on which column(s) a derived table will be distributed. I was under the impression that it was the first column too. I believe I was told this at PARTNERS a couple of years ago.  



It's the column(s) used for a join in the next step. That's why you can get a skewed spool when you join on very non-unique columns.


Dieter



     
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