Lucene certainly supports multiple sort criteria, see IndexSearcher.search, any one that takes a Sort object. The Sort object can contain a list of fields where any ties in the first N field(s) are decided by looking at field N+1.
But, Ganesh, be a little careful about resolving by internal Lucene doc ID. Not only do they change during merges, but some policies re-order them. I'd put in an ordinal number that was the insertion order. Best Erick On Wed, Jul 18, 2012 at 8:34 AM, googoo <liu...@gmail.com> wrote: > I don't think lucene will support multi sort. > If you look into org.apache.lucene.search.TopScoreDocCollector you may get > some feeling. > It use max heap to sort the document, and the score is one time calculate, > it it not first sort by time, then sort again by id. > > When lucene sort below documents: > record_1 201207170101 > record_2 201207170101 > record_3 201207170102 > record_4 201207170102 > > first get record_1, and it score is 201207170101, then record_1 on top of > the heap > tehn get record_2, and it score is 201207170101, then will put record_2 > after record_1 > then get record_3, and it score is 201207170102, this score > current top > value 201207170101, then the max heap change to record_3, record_1, record_2 > last get record_3, and it score is 201207170102, is score = current top male > 201207170102, , then the max heap change to record_3, record_4, record_1, > record_2 > > > > > -- > View this message in context: > http://lucene.472066.n3.nabble.com/Multiple-sort-field-tp3995502p3995699.html > Sent from the Lucene - Java Users mailing list archive at Nabble.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
