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From DMGoodst...@lbl.gov
Subject Re: Loss of wildcard when search term is quoted with StandardAnalyzer
Date Mon, 12 Aug 2002 19:10:53 GMT
Otis:
  I'm using 1.2-RC5.
--David


----- Original Message -----
From: Otis Gospodnetic <otis_gospodnetic@yahoo.com>
Date: Monday, August 12, 2002 12:07 pm
Subject: Re: Loss of wildcard when search term is quoted with
StandardAnalyzer

> Which version of Lucene are you using?
> This should work with the latest (nightly) versions.
> There are even tests that excercise this functionality and they pass.
> 
> Otis
> 
> --- DMGoodstein@lbl.gov wrote:
> > For an index created with StandardAnalyzer, with fields called
> > "go_desc"
> > and "pu_desc", I construct the following query using QueryParser 
> with> the StandardAnalyzer:
> > 
> > annotQueryStr = "go_desc:\"intracellular signaling\"";
> >  Query query = 
> > 	        QueryParser.parse(annotQueryStr,"pu_desc", new 
> StandardAnalyzer());> log.writeToLog(Log.DEBUG," query is " + 
> query.toString("pu_desc"));> 
> > My log output shows that the Query is parsed as:
> >          query is go_desc:"intracellular signaling"
> > 
> > So that seems to be working fine, and the query returns the expected
> > results.
> > 
> > If I construct add a wildcard to the query:
> > annotQueryStr = "go_desc:\"intracellular signal*ng\"";
> >  Query query = 
> > 	        QueryParser.parse(annotQueryStr,"pu_desc", new 
> StandardAnalyzer());> log.writeToLog(Log.DEBUG," query is " + 
> query.toString("pu_desc"));> 
> > My log output shows that the wilcard is replaced by whitespace:
> >         query is go_desc:"intracellular signal ng"
> > and this returns no results.
> > 
> > Why should StandardAnalyzer be doing this?  Note that this only
> > happens
> > with "quoted" search terms.  If I try
> > 
> > annotQueryStr = "go_desc:signal*ng";
> > My logfile shows that
> >         query is go_desc:signal*ng
> > 
> > So it's handling wildcards fine in this case.
> > 
> > thanks,
> > --David Goodstein
> > 
> > 
> > 
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> 
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