See http://heliosearch.org/solrs-new-re-ranking-feature/
On Wed, Jul 23, 2014 at 11:27 AM, Erick Erickson <erickerick...@gmail.com> wrote: > I'm having a little trouble understanding the use-case here. Why use > re-ranking? > Isn't this just combining the original query with the second query with an > AND > and using the original sort? > > At the end, you have your original list in it's original order, with > (potentially) some > documents removed that don't satisfy the secondary query. > > Or I'm missing the boat entirely. > > Best, > Erick > > > On Wed, Jul 23, 2014 at 6:31 AM, Peter Keegan <peterlkee...@gmail.com> > wrote: > > > I'm looking at how 'ReRankQuery' works. If the main query has a Sort > > criteria, it is only used to sort the first pass results. The QueryScorer > > used in the second pass only reorders the ScoreDocs based on score and > > docid, but doesn't use the original Sort fields. If the Sort criteria is > > 'score desc, myfield asc', I would expect 'myfield' to break score ties > > from the second pass after rescoring. > > > > Is this a bug or the intended behavior? > > > > Thanks, > > Peter > > >
