What happens is when you index using the analyzer, attent gets indexed (assuming you are using the same analyzer while indexing). When you search for attent*, the query formed is for attent. when you search for attenti*, it would look for all documents that contain attenti* (which would not be present in the doc that got indexed as attent). Also, stemmer wouldn't work in case of wildcards. Hope this solves your issues.
-- Anshum Gupta Naukri Labs! http://ai-cafe.blogspot.com The facts expressed here belong to everybody, the opinions to me. The distinction is yours to draw............ On Mon, Aug 31, 2009 at 3:17 PM, Ganesh <emailg...@yahoo.co.in> wrote: > Hi Anusham > > I could understand that the Analyzer stems the word to base word and stores > in DB. Users may not know this internals and they tend to give "attenti*". > > My question is queryparser should stem the word and then apply /expand the > wild card query. Is this a bug with queryparser? OR Analyzer will not stem > the word if it finds a wild card operator in it? > > Regards > Ganesh > > > ----- Original Message ----- > From: "Anshum" <ansh...@gmail.com> > To: <java-user@lucene.apache.org> > Sent: Monday, August 31, 2009 3:01 PM > Subject: Re: Wildcard query > > > > Hi Ganesh, > > > > Its the snowball analyzer that uses English Stemmer which is causing this > > behavior. When you search for* 'attention'*, the query gets parsed > to*'attent' > > *whereas when you search for *'attenti'* it stays as it is because the > > stemmer is not able to fit it anywhere. > > Could you tell me what is the goal that is to be met here? I suppose > using > > just the Snowball analyzer here might be enough for you and you might > just > > give the wildcard query a complete skip. > > > > -- > > Anshum Gupta > > Naukri Labs! > > http://ai-cafe.blogspot.com > > > > The facts expressed here belong to everybody, the opinions to me. The > > distinction is yours to draw............ > > > > > > On Mon, Aug 31, 2009 at 11:36 AM, Ganesh <emailg...@yahoo.co.in> wrote: > > > >> Hello all, > >> > >> I am having some content with text "attention". If is search using > "att*", > >> "attent*", the results are displayed. If i search for "attenti*" then no > >> results are displayed. > >> > >> I am using Snowball Analyzer for Indexing and Search (Lucene v2.4.1). > >> > >> Regards > >> Ganesh > >> Send instant messages to your online friends > http://in.messenger.yahoo.com > >> > >> --------------------------------------------------------------------- > >> To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > >> For additional commands, e-mail: java-user-h...@lucene.apache.org > >> > >> > > > Send instant messages to your online friends http://in.messenger.yahoo.com > > --------------------------------------------------------------------- > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-user-h...@lucene.apache.org > >
