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From Chris Hostetter <>
Subject Re: operator in Dismax??
Date Fri, 18 Apr 2008 21:59:57 GMT

: I had a doubt regarding using operator in dismax handler that if i could 
: use OR, AND, NOT operators in dismax, as they are used in standard 
: handler.
: I tried using OR operator as used in standard handler but got unexpected results.

Dismax is deisned with the assumption that most queries won't involved 
query operators, but they do still work.  the key is to udnerstand that 
"OR" just means the clauses "should" match and the "mm" param lets you 
specify what number/percentage of the "should" clauses are mandatory.

Specifying "OR" in the query string is unneccessary ... clauses are 
"SHOULD" clauses by default.


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