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https://issues.apache.org/jira/browse/LUCENE-5103?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13707804#comment-13707804
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ASF subversion and git services commented on LUCENE-5103:
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Commit 1502832 from [~dsmiley]
[ https://svn.apache.org/r1502832 ]
LUCENE-5103: A join on A single-valued field with deleted docs scored too few
docs. Did a little refactoring of the inner scorers too.
> join on single-valued field with deleted docs scores too few docs
> -----------------------------------------------------------------
>
> Key: LUCENE-5103
> URL: https://issues.apache.org/jira/browse/LUCENE-5103
> Project: Lucene - Core
> Issue Type: Bug
> Components: modules/join
> Affects Versions: 4.3.1
> Reporter: David Smiley
> Assignee: David Smiley
> Fix For: 4.4
>
> Attachments: LUCENE-5103_join_livedocs_bug.patch
>
>
> TermsIncludingScoreQuery has an inner class SVInnerScorer used when the "to"
> side of a join is single-valued. This has a nextDocOutOfOrder() method that
> is faulty when there are deleted documents, and a document that is deleted is
> matched by the join. It'll terminate with NO_MORE_DOCS prematurely.
> Interestingly, it _appears_ MVInnerScorer (multi-valued) was coded properly
> to not have this problem.
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