--- On Tue, 6/14/11, Jason, Kim <hialo...@gmail.com> wrote:
> From: Jason, Kim <hialo...@gmail.com> > Subject: Re: disable sort by score > To: solr-user@lucene.apache.org > Date: Tuesday, June 14, 2011, 6:57 AM > Thanks to reply, Erick! > > Actually, I need sort by score. > I was just curious that seach result without sorting is > possible. > Then I found > http://lucene.472066.n3.nabble.com/MaxRows-and-disabling-sort-td2260650.html > In above context, Chris Hostetter-3 wrote > ++++++++++++++++++++++++++++++++++++++++++++++++++++++ > http://wiki.apache.org/solr/CommonQueryParameters#sort > "You can sort by index id using sort=_docid_ asc or > sort=_docid_ desc" > > if you specify _docid_ asc then solr should return as soon > as it finds the > first N matching results w/o scoring all docs (because no > score will be > computed) > ++++++++++++++++++++++++++++++++++++++++++++++++++++++ > > I tried to check perfomance using _docid_ asc. > But _docid_ didn't work in distributed search. > So I made inquiries to know that another method is. In lucene it is possible with Collector. "...Collector decouples the score from the collected doc: the score computation is skipped entirely if it's not needed. Collectors that do need the score should implement the..." [1] [1]http://lucene.apache.org/java/3_0_2/api/core/org/apache/lucene/search/Collector.html But i am not sure how to plug it to solr. There has been some discussion about it. http://search-lucene.com/?q=custom+collector&fc_project=Solr&fc_type=mail+_hash_+user
