The DocValues field is better for sorting, as the values do not need to be uninverted. The Field is already written to disk as a big int[] array, so sorting using SortField is faster and less memory expensive because this structure can be used for sorting.
----- Uwe Schindler H.-H.-Meier-Allee 63, D-28213 Bremen http://www.thetaphi.de eMail: u...@thetaphi.de > -----Original Message----- > From: Ivan Vasilev [mailto:ivasi...@sirma.bg] > Sent: Wednesday, October 31, 2012 2:43 PM > To: LUCENE MAIL LIST > Subject: IntField vs (IntDocValuesField + StoredField) > > Hy Guys, > > Is there some advantage in speed or index size to use this: > > IntDocValuesField fld = new IntDocValuesField("fldName", 1); StoredField fld > = new StoredField("fldName", 1); > > instead of this: > > IntField fld = new IntField("fld", 1, Field.Store.YES); > > Searching, sorting and retrieving data from just one object (IntField) is > easier > than dealing with two objects (IntDocValuesField and > StoredFiel) for the same field. > So as Lucene includes the also latter alternative, there might be some > advantages using it? > > Cheers, > Ivan > > --------------------------------------------------------------------- > 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
