Sort by the internal Lucene document ID and pick the highest one. That might do the job for you.
Otis -- Sematext -- http://sematext.com/ -- Lucene - Solr - Nutch ----- Original Message ---- > From: vivek sar <vivex...@gmail.com> > To: solr-user <solr-user@lucene.apache.org> > Sent: Wednesday, July 8, 2009 8:34:16 PM > Subject: Boosting for most recent documents > > Hi, > > I'm trying to find a way to get the most recent entry for the > searched word. For ex., if I have a document with field name "user". > If I search for user:vivek, I want to get the document that was > indexed most recently. Two ways I could think of, > > 1) Sort by some time stamp field - but with millions of documents this > becomes a huge memory problem as we have seen OOM with sorting before > 2) Boost the most recent document - I'm not sure how to do this. > Basically, we want to have the most recent document score higher than > any other and then we can retrieve just 10 records and sort in the > application by time stamp field to get the most recent document > matching the keyword. > > Any suggestion on how can this be done? > > Thanks, > -vivek
