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https://issues.apache.org/jira/browse/LUCENE-1656?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael McCandless resolved LUCENE-1656.
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Resolution: Fixed
> When sorting by field, IndexSearcher should not compute scores by default
> -------------------------------------------------------------------------
>
> Key: LUCENE-1656
> URL: https://issues.apache.org/jira/browse/LUCENE-1656
> Project: Lucene - Java
> Issue Type: Improvement
> Components: Search
> Reporter: Michael McCandless
> Assignee: Michael McCandless
> Priority: Minor
> Fix For: 2.9
>
> Attachments: LUCENE-1656.patch
>
>
> In 2.9 we've added the ability to turn off scoring (maxScore &
> trackScores, separately) when sorting by field.
> I expect most apps don't use the scores when sorting by field, and
> there's a sizable performance gain when scoring is off, so I think for
> 2.9 we should not score by default, and add show in CHANGES how to
> enable scoring if you rely on it.
> If there are no objections, I'll commit that change in a day or two
> (it's trivial).
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