|  |  | Archives of the TeradataForumMessage Posted: Tue, 10 Jan 2006 @ 15:45:32 GMT
 
 
  
| Subj: |  | Re: OLAP Function & MAX |  |  |  | From: |  | wintermi |  
 Hi, Based on tests which I did recently, the OLAP Function performed better than using a normal aggregate function with a Group By clause. However
this was based on a complex parent, child relationship and on a system with plenty of CPU headroom. The results showed a reduction of 30% in the
elapsed time, but an increase in the amount of spool space required. I would recommend that you perform tests on the type of query you need to perform. 
 Regards Matthew Winter 
 
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