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https://issues.apache.org/jira/browse/LUCENE-5799?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14048843#comment-14048843
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ASF subversion and git services commented on LUCENE-5799:
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Commit 1607065 from [~rcmuir] in branch 'dev/trunk'
[ https://svn.apache.org/r1607065 ]
LUCENE-5799: optimize numeric docvalues merging
> speed up DocValuesConsumer.mergeNumericField
> --------------------------------------------
>
> Key: LUCENE-5799
> URL: https://issues.apache.org/jira/browse/LUCENE-5799
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Robert Muir
> Attachments: LUCENE-5799.patch
>
>
> This method (used for both numeric docvalues and norms) is a little slow:
> * does some boxing for no good reason (can just use a boolean instead)
> * checks docsWithField always, instead of only when value == 0. This can
> cause unnecessary i/o.
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