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Low cardinality and use of Index. |
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== Cardinality in math ==
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[[Special:Contributions/59.160.30.29|59.160.30.29]] ([[User talk:59.160.30.29|talk]]) 07:21, 25 March 2009 (UTC)Soumen(http://soumen.wordpress.com)
:OK, this is not what talk pages are for, but here it is anyway... Indexing a column of low cardinality makes sense when:
:*using bitmap indexes
:*the column in question is a part of a composite index. [[User:GregorB|GregorB]] ([[User talk:GregorB|talk]]) 19:32, 17 July 2009 (UTC)
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