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From Paul Elschot <paul.elsc...@xs4all.nl>
Subject Re: An arguable bug in Lucene 1.9.1
Date Tue, 06 Feb 2007 08:16:22 GMT
Gentlemen,

Have a look here:
https://issues.apache.org:443/jira/browse/LUCENE-413
This was fixed in 2.0. 

Regards,
Paul Elschot




On Tuesday 06 February 2007 01:38, Lee_Gary@emc.com wrote:
> I am seeing this issue as well with the exact same stack trace using
> spanQueries. Does anyone know if this has been fixed for versions after
> 1.9.1?
> 
> Thanks
> Gary 
> 
> -----Original Message-----
> From: Erick Erickson [mailto:erickerickson@gmail.com] 
> Sent: Tuesday, May 23, 2006 07:23 AM
> To: java-user@lucene.apache.org
> Subject: An arguable bug in Lucene 1.9.1
> 
> I'm constructing a BooleanQuery across several fields with
> SpanNearQuerys.
> In the degenerate case of spanning *one* term, AND adding a non-span
> clause, I get an exception thrown. Of course you can argue that a span
> query over one term is silly and shouldn't be done, but I thought I'd
> mention this. I'm content with whatever y'all decide.
> 
> Here's the results of a BooleanQuery.toString:
> 
> +(spanNear([person:john], 20, false) spanNear([text:john], 5, false))
> +groupid:14075
> 
> This results in the following stack trace:
> 
> ava.lang.ArrayIndexOutOfBoundsException: 4
>     at org.apache.lucene.search.BooleanScorer2$Coordinator.coordFactor(
> BooleanScorer2.java:54)
>     at org.apache.lucene.search.BooleanScorer2.score(BooleanScorer2.java
> :328)
>     at org.apache.lucene.search.ConjunctionScorer.score(
> ConjunctionScorer.java:82)
>     at
> org.apache.lucene.search.BooleanScorer2$2.score(BooleanScorer2.java
> :186)
>     at org.apache.lucene.search.BooleanScorer2.score(BooleanScorer2.java
> :327)
>     at org.apache.lucene.search.BooleanScorer2.score(BooleanScorer2.java
> :291)
>     at
> org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:132)
>     at
> org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:110)
>     at org.apache.lucene.search.Searcher.search(Searcher.java:76)
>    ****my code here
> 
> If I take off the end clause, or have more than one string in the span,
> it works. e.g.
> 
> +(spanNear([person:john], 20, false) spanNear([text:john], 5, false))
> 
> works, as does:
> 
> +(spanNear([person:john, person:johnson], 20, false) 
> +spanNear([text:john,
> text:johnson], 5, false)) +groupid:14075
> 
> Of course I can (and will) intercept the creation of the span queries
> when there is only one term and use TermQuery instead. I suspect that
> this is better practice anyway.
> 
> I'll be happy to enter this in bugs database if you think I should.
> 
> Best
> Erick
> 
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> 
> 
> 

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