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The "DisMax" page has been changed by JanHoydahl: http://wiki.apache.org/solr/DisMax?action=diff&rev1=3&rev2=4 '''Max''' means that if your word "foo" matches both title and body, the max score of these two (probably title match) is added to the score, not the sum of the two as a simple OR query would do. This gives more control over your ranking. - !DisMax is usually the short name for the actual query parser, so don't be confused. The old [[DisMaxQParserPlugin|DisMax]] parser has been around for some time, while the new and more advanced [[ExtendedDisMax]] parser was introduced in <!> [[Solr3.1]] as experimental. + !DisMax is usually the short name for the actual query parser, so don't be confused. The old [[DisMaxQParserPlugin|DisMax parser]] has been around for some time, while the new and more advanced [[ExtendedDisMax|ExtendedDisMax parser]] was introduced in <!> [[Solr3.1]] as experimental. There is a Lucid Imagination Blog post that explains the [[http://www.lucidimagination.com/blog/2010/05/23/whats-a-dismax/|origins and conceptual behavior]] of dismax functionality.
