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From "Yonik Seeley (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-413) [PATCH] BooleanScorer2 ArrayIndexOutOfBoundsException + alternative NearSpans
Date Mon, 03 Apr 2006 15:53:45 GMT
    [ http://issues.apache.org/jira/browse/LUCENE-413?page=comments#action_12372961 ] 

Yonik Seeley commented on LUCENE-413:
-------------------------------------

> The same documents still match in the tests, only some score values change.

Could you elaborate on this point?  Are the old or new scores correct?

> I don't know whether DisjunctionSumScorerPatch5.txt is still needed, but it should not
hurt.

I was going to commit that one anyway... it looks like a bug if skipTo(target) is called with
target<= currentDoc.  Most scorers wouldn't do that, so I don't know if it's ever manifested
as an error.

> [PATCH] BooleanScorer2 ArrayIndexOutOfBoundsException + alternative NearSpans
> -----------------------------------------------------------------------------
>
>          Key: LUCENE-413
>          URL: http://issues.apache.org/jira/browse/LUCENE-413
>      Project: Lucene - Java
>         Type: Bug

>   Components: Search
>     Versions: CVS Nightly - Specify date in submission
>  Environment: Operating System: other
> Platform: Other
>     Reporter: paul.elschot
>     Assignee: Lucene Developers
>  Attachments: DisjunctionSumScorerPatch3.txt, DisjunctionSumScorerPatch4.txt, DisjunctionSumScorerPatch5.txt,
DisjunctionSumScorerTestPatch1.txt, NearSpansOrdered.java, NearSpansOrderedBugHuntPatch1.txt,
NearSpansUnordered.java, SpanNearQueryPatch1.txt, SpanScorer.java, SpanScorerTestPatch1.txt,
TestSpansAdvanced.java, TestSpansAdvanced2.java
>
> From Erik's post at java-dev: 
>  
> >      [java] Caused by: java.lang.ArrayIndexOutOfBoundsException: 4 
> >      [java]     at org.apache.lucene.search.BooleanScorer2  
> > $Coordinator.coordFactor(BooleanScorer2.java:54) 
> >      [java]     at org.apache.lucene.search.BooleanScorer2.score  
> > (BooleanScorer2.java:292) 
> ... 
>  
> and my answer: 
>  
> Probably nrMatchers is increased too often in score() by calling score() 
> more than once.

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