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From Arun Kumar K <arunk...@gmail.com>
Subject Re: WildCardQuery: TooManyClauses Exception
Date Thu, 18 Apr 2013 11:22:16 GMT
Thanks Uwe for clarification !


On Thu, Apr 18, 2013 at 4:37 PM, Uwe Schindler <uwe@thetaphi.de> wrote:

> 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: uwe@thetaphi.de
>
>
> > -----Original Message-----
> > From: Arun Kumar K [mailto:arunk786@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
>
>
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