On Mon, Feb 25, 2013 at 2:19 PM, Wei Wang <welshw...@gmail.com> wrote: > Cool. Thanks, Ian. > > I will try FieldCacheTermsFilter. > > A related question. Occasionally, we would like only use filtering > conditions instead of ranking/scoring. Right now I use > MatchAllDocsQuery with TermsFilter. Based on the code of > MatchAllDocsQuery, it seems the class enumerates all doc IDs up to > maxDoc. If we are able to interpret bitmap of filters directly, it may > be more efficient. > > Can we use Filter to return list of docs or count of docs directly?
Use ConstantScoreQuery: it turns a Filter into a Query, where every doc gets a score equal to the ConstantScoreQuery.setBoost (1.0 by default). Mike McCandless http://blog.mikemccandless.com --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
