Based on responses from Steven Rowe <[EMAIL PROTECTED]> and Mark Miller < [EMAIL PROTECTED]>:
Lucene uses a scoring system that behaves similarly to a boolean system. ... more information in the October 2006 thread "QueryParser is Badly Broken<http://www.gossamer-threads.com/lists/lucene/java-user/40945> "
This is now my generalized understanding of the parser's operators. Am I closer? *Document* A OR B A B +A B A NOT B -B A AND NOT B A –B *No Matching Terms* 0 0 0 0 1 0 0 0 A 1 1 1 1 1 0 1 1 B 1 1 0 0 0 0 0 *0* A B 1 2 2 1 0 0 0 1* 0* Non-zero results are returned to the user. *Walt Stoneburner <[EMAIL PROTECTED]> 10-Jan-2007 v1.0* -wls
