Thank you, Mike. I will try it out. On Mon, Feb 25, 2013 at 4:01 PM, Michael McCandless <luc...@mikemccandless.com> wrote: > 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 >
--------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
