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Message Posted: Tue, 14 Feb 2006 @ 14:49:56 GMT


     
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Subj:   Re: Join Index with UNION stmt..
 
From:   Barner, Eric

You should check the spool usage Teradata seems to have some issues with large unions we have abandoned them in our data warehouse, if you build a temp table with the first statement, then insert/select the other two you may see a large increase in performance.


Eric Barner
Database Administrator
Planning Systems Incorporated



     
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