Thanks, I tried it in the past and found out that my hit ratio was pretty low, so it doesn't help most of my queries
ofer On Wed, Mar 2, 2011 at 7:16 PM, Geert-Jan Brits <gbr...@gmail.com> wrote: > If you often query X as part of several other queries (e.g: X | X AND Y | > X AND Z) > you might consider putting X in a filter query ( > http://wiki.apache.org/solr/CommonQueryParameters#fq) > > leading to: > q=*:*&fq=X > q=Y&fq=X > q=Z&fq=X > > Filter queries are cached seperately which means that after the first query > involving X, X should be returned quickly. > So your FIRST query will probably still be in the 'few seconds'- range, but > all following queries involving X will return much quicker. > > hth, > Geert-Jan > > 2011/3/2 Ofer Fort <ofer...@gmail.com> > > > Hey all, > > I have an index with a lot of documents with the term X and no documents > > with the term Y. > > If i query for X it take a few seconds and returns the results. > > If I query for Y it takes a millisecond and returns an empty set. > > If i query for Y AND X it takes a few seconds and returns an empty set. > > > > I'm guessing that it evaluate both X and Y and only then tries to > intersect > > them? > > > > Am i wrong? is there another way to run this query more efficiently? > > > > thanks for any input > > >
