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Message Posted: Wed, 14 Apr 2010 @ 15:55:39 GMT


     
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Subj:   Re: PPI on Date and Char data
 
From:   Anomy Anom

<-- Anonymously Posted: Wednesday, April 14, 2010 11:52 -->

For a column that just contains an indicator with a few possible distinct values (e.g. Y/N), a single-column index would be a bad idea. Collecting single-column stats is generally a good idea, particularly if the data is heavily skewed to one of the two values.



     
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