Looks like AND is your defaultOperator [1]. Check your schema.xml and try adding q.op=or to your query.
[1]: http://wiki.apache.org/solr/SearchHandler#q.op On Thursday 09 September 2010 15:34:52 Stéphane Corlosquet wrote: > Hi all, > > I'm new to solr so please let me know if there is a more appropriate place > for my question below. > > I'm noticing a rather unexpected number of results when I add more keywords > to a search. I'm listing below a example (where I replaced the real > keywords with placeholders): > > keyword1 851 hits > keyword1 keyword2 90 hits > keyword1 keyword2 keyword3 269 hits > keyword1 keyword2 keyword3 keyword4 47 hits > > As you can see, adding k2 narrows down the amount of results (as I would > expect), but adding k3 to k1 and k2 suddenly increases the amount of > results. with 4 keywords, the results have been narrowed down again. Would > solr/lucene search algorithm with multiple keywords explain this non > consistent behavior? I would think that adding more keywords would narrow > down my results. > > I'm pasting below the relevant log in case it helps: > > INFO: [] webapp=/solr path=/select/ > params={spellcheck=true&facet=true&facet.mincount=1&facet.limit=20&spellche > ck.q=keyword1+keyword2+keyword3+keyword4& > json.nl=map&wt=json&version=1.2&rows=10&fl=id,nid,title,comment_count,type > ,created,changed,score,path,url,uid,name&start=0&facet.sort=true&q=keyword1 > +keyword2+keyword3+keyword4&bf=recip(rord(created),4,10704,10704)^200.0&fac > et.field=im_cck_field_author&facet.field=type&facet.field=im_vid_1=&indent= > on&start=0&version=2.2&rows=10} hits=10704 status=0 QTime=1 > > any hint on whether this is expected or not appreciated. > > Steph. > Markus Jelsma - Technisch Architect - Buyways BV http://www.linkedin.com/in/markus17 050-8536620 / 06-50258350
