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https://issues.apache.org/jira/browse/LUCENE-5486?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13918279#comment-13918279
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ASF subversion and git services commented on LUCENE-5486:
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Commit 1573616 from [~mikemccand] in branch 'dev/branches/branch_4x'
[ https://svn.apache.org/r1573616 ]
LUCENE-5486: allow out-of-order collector selection with query time joins
> query time join should override Weight.scoresDocsOutOfOrder
> -----------------------------------------------------------
>
> Key: LUCENE-5486
> URL: https://issues.apache.org/jira/browse/LUCENE-5486
> Project: Lucene - Core
> Issue Type: Bug
> Components: modules/join
> Reporter: Michael McCandless
> Assignee: Michael McCandless
> Priority: Minor
> Fix For: 4.8, 5.0
>
> Attachments: LUCENE-5486.patch
>
>
> The TermsIncludingScoreQuery seems to have optimized impls when the collector
> can accept out-of-order docIDs. BTW, as far as I know, besides
> BooleanScorer, this is the only query scorer we have that can "take
> advantage" of out-of-order docIDs during collection.
> However, its Weight class fails to override scoresDocsOutOfOrder, which then
> means that for the common case where apps use IndexSeacher.search to sort by
> score or field, these impls will never be used.
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