Documents with both terms are likely to be returned first because they are likely to score higher, but that isn't guaranteed. Google "lucene scoring" for details.
If you absolutely must have docs with both terms first, you could execute 2 searches: the first with AND and the second with OR, then dedup the hit lists. Or if you are using QueryParser, use 2 clauses with boosting. Something like (foo AND bar)^4 (foo bar) That syntax might be wrong. See http://lucene.apache.org/java/3_3_0/queryparsersyntax.html for details. The same idea will also apply if you are building your queries up in code. -- Ian. On Fri, Sep 9, 2011 at 12:32 PM, dyzc2010 <zhoucheng2...@gmail.com> wrote: > Hi, > > > I am trying to use OR operator, and want to know if it returns the results > comprising of both keywords contained first and then either keyword later. > > > To be more clear, if A OR B is enforced, should results with A and B are > returned first? > > > If not, how can I make sure that the OR operator can do the job. > > > Thanks --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
