> From: Scott Ganyo [mailto:[EMAIL PROTECTED]] > > How difficult would it be to get BooleanQuery to do a > standalone NOT, do you > suppose? That would be very useful in my case.
It would not be that difficult, but it would make queries slow. All terms not containing a term would need to be enumerated. Since most terms occur in only a small percentage of the documents, most NOT queries would return most documents. Scoring would also be strange. I guess you'd give them all a score of 1.0, and hope that the query is nested in a more complex query that will differentiate the scores. But if it's nested, then you could do it with BooleanQuery as it stands... So, my question to you is: do you actually want lists of all documents that do not contain a term, or, rather, do you want to use negation in the context of other query terms, and are having trouble getting your query parser to build BooleanQueries? Doug -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
