Lucene 2.9+ has a different Wildcard Expansion using BooleanQuery only for few terms, otherwise it uses a filter-based approach. Same applies for range queries and prefix queries.
----- Uwe Schindler H.-H.-Meier-Allee 63, D-28213 Bremen http://www.thetaphi.de eMail: u...@thetaphi.de > -----Original Message----- > From: Arun Kumar K [mailto:arunk...@gmail.com] > Sent: Thursday, April 18, 2013 12:41 PM > To: java-user > Subject: WildCardQuery: TooManyClauses Exception > > Hi Guys, > > I am using following queries: > 1>WildCardQuery > 2>BooleanQuery having a WildCardQuery and TermQuery. > WildCardQuery is field:* or say field:ab* > > From Lucene FAQs and earlier discussions about TooManyClausesException i > see that WildCardQuery gets expanded before doing search. > > For that i was trying to simulate this exception with Lucene 3.0.2 and i don't > get one for WildCardQuery. > For BooleanQuery with many term queries/ clauses i could simulate but for > BooleanQuery (with a WildCardQuery & TermQuery) and for WildCardQuery i > couldn't. > I have 10000 tokens matching the search for a field:* or field:ab* in the > index. > > I feel expansion doesn't happen for WildCardQuery and BooleanQuery > having it considers it as one clause. > > Have some implementation changed in 3.0.2 ? > Can anyone explain the Query expansion here ? > > Arun --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
