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https://issues.apache.org/jira/browse/LUCENE-6912?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15042062#comment-15042062
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ASF subversion and git services commented on LUCENE-6912:
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Commit 1718011 from [~dsmiley] in branch 'dev/branches/branch_5x'
[ https://svn.apache.org/r1718011 ]
LUCENE-6912: Grouping's Collectors now calculate a needsScores() instead of
always 'true'.
In core, CachingCollector should have always returned true when scores are
cached (small bug).
> Grouping's Collectors should have smart needsScores()
> -----------------------------------------------------
>
> Key: LUCENE-6912
> URL: https://issues.apache.org/jira/browse/LUCENE-6912
> Project: Lucene - Core
> Issue Type: Improvement
> Components: modules/grouping
> Reporter: David Smiley
> Assignee: David Smiley
> Fix For: 5.5
>
> Attachments: LUCENE_6912.patch
>
>
> The Grouping module has numerous Collector implementations, and only a couple
> perhaps override needsScore() with an optimal choice. Lets do this for all
> of them.
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