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From Chris Hostetter <hossman_luc...@fucit.org>
Subject Re: operator precedence and confusing result
Date Fri, 13 Mar 2009 18:25:49 GMT

to elaborate a bit on Mike's comments...

: version of Lucene).  Lucene doesn't have a hierarchical boolean query model

...it has a relevancy based query model.  documents don't just 
match(true|false) ... if they match, they have a score.

: A AND B OR C OR D OR E OR F
: -> +A +B C D E F
: -> find documents that match clause A and clause B (other clauses don't affect
: matching)

...but the other caluses do affect scoring, the more of those clauses that 
match, the higher the score.

-Hoss


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