I don't think there's an easy "built-in" way for Lucene to do this.
What you can do is implement a HitCollector to process each doc hit and maintain a count for each user_group. You'll need to preload a doc_id -> user_group mapping. (Take a look at the code for FieldCacheImpl.getInts() for sample code). ~Heng On 7/19/06, James liu <[EMAIL PROTECTED]> wrote:
You misunderstand. This sql just tell what i wanna do. i have five user_group and i wanna group result which lucene do. 2006/7/20, Otis Gospodnetic <[EMAIL PROTECTED]>: > > No. Lucene is not a relational database and doesn't speak SQL. > > Otis > > ----- Original Message ---- > From: James liu <[EMAIL PROTECTED]> > To: java-user@lucene.apache.org > Sent: Wednesday, July 19, 2006 11:34:00 PM > Subject: Can lucene query this result? > > for example: > > $sql = "select count(*), user_group from groups where uid>0 group by > user_group; > > > can lucene query this result? > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > >
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