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[jira] Resolved: (LUCENE-456) Duplicate hits and missing hits in sorted

Subject: [jira] Resolved: (LUCENE-456) Duplicate hits and missing hits in sorted search
From: "Yonik Seeley (JIRA)"
Date: Fri, 11 Nov 2005 04:36:03 +0100 CET
     [ http://issues.apache.org/jira/browse/LUCENE-456?page=all ]
Yonik Seeley resolved LUCENE-456:

    Resolution: Fixed
     Assign To: Yonik Seeley

patch applied to the current version.

> Duplicate hits and missing hits in sorted search
> ------------------------------------------------
>          Key: LUCENE-456
>          URL: http://issues.apache.org/jira/browse/LUCENE-456
>      Project: Lucene - Java
>         Type: Bug
>   Components: Search
>     Versions: 1.4
>  Environment: JDK 1.4.2_06, probably OS independant, testet on Solaris 8 and 
> Win2000
>     Reporter: Martin Seitz
>     Assignee: Yonik Seeley
>     Priority: Minor
>  Attachments: FieldDocSortedHitQueue_dups.txt, 
> TestCustomSearcherSort_1_4_3.java, TestCustomSearcherSort_HEAD.java
> If using a searcher that subclasses from IndexSearcher I get different result 
> sets (besides the ordering of course). The problem only occurrs if the 
> searcher is wrapped by (Parallel)MultiSearcher and the index is not too 
> small. The number of hits returned by un unsorted and a sorted search are 
> identical but the hits are referencing different documents. A closer look at 
> the result sets revealed that the sorted search returns duplicate hits.
> I created test cases for Lucene 1.4.3 as well as for the head release. The 
> problem showed up for both, the number of duplicates beeing bigger for the 
> head realease. The test cases are written for package 
> org.apache.lucene.search. There are messages describing the problem written 
> to the console. In order to see all those hints the asserts are commented 
> out. So dont't be confused if junit reports no errors. (Sorry, beeing a 
> novice user of the bug tracker I don't see any means to attach the test cases 
> on this screen. Let's see.)

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