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https://issues.apache.org/jira/browse/LUCENE-7215?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15240188#comment-15240188
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ASF subversion and git services commented on LUCENE-7215:
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Commit 2335a458d8340bbb8e4fe8133a74763bd2d37fd1 in lucene-solr's branch 
refs/heads/master from [~rcmuir]
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=2335a45 ]

LUCENE-7215: don't invoke full haversin for LatLonPoint.newDistanceQuery


> don't invoke full haversin for LatLonPoint.newDistanceQuery
> -----------------------------------------------------------
>
>                 Key: LUCENE-7215
>                 URL: https://issues.apache.org/jira/browse/LUCENE-7215
>             Project: Lucene - Core
>          Issue Type: Improvement
>            Reporter: Robert Muir
>         Attachments: LUCENE-7215.patch
>
>
> For tree traversals and edge cases we still sometimes invoke full haversin 
> (with asin() call and everything). this is not necessary: we just need to 
> compute the exact sort key needed for comparisons.
> While not a huge optimization, its obviously less work and keeps the overhead 
> of the BKD traversal as low as possible. And it removes the slow asin call 
> from any hot path (its already done for sorting too), with its large tables 
> and so on.



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