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Message Posted: Thu, 13 Mar 2003 @ 08:50:07 GMT


     
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Subj:   Re: Stats on the PI
 
From:   Dieter Nöth

Michael Larkins wrote:

  The following is exactly what "Teradata SQL - Unleash the Power" says:  


  Here are some excellent guidelines on what you should collect statistics on:  


  . All Non-Unique indices  


  . Non-index join columns  


  . The Primary Index of small tables  


  . Primary Index of a Join Index  


  . Secondary Indices defined on any join index  


  . Join index columns that frequently appear on any additional join index columns that frequently appear in WHERE search conditions  


  . Columns that frequently appear in WHERE search conditions or in the WHERE clause of joins  




And this happens to be the same in the Teradata manuals ;-)


Dieter



     
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