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https://issues.apache.org/jira/browse/LUCENE-7309?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15310492#comment-15310492
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ASF subversion and git services commented on LUCENE-7309:
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Commit 9c9d8ccf7eb9d4d491ffe85714cf0aabaaec0065 in lucene-solr's branch
refs/heads/branch_6x from [~jpountz]
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=9c9d8cc ]
LUCENE-7309: Speed up Polygon2D creation.
> Speed up Polygon2D construction
> -------------------------------
>
> Key: LUCENE-7309
> URL: https://issues.apache.org/jira/browse/LUCENE-7309
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Adrien Grand
> Assignee: Adrien Grand
> Priority: Minor
> Fix For: 6.1, master (7.0)
>
> Attachments: LUCENE-7309.patch
>
>
> Polygon2D.create recursively sorts on each dimension to build a tree.
> However, it does not really need to sort the data, it just needs to compute
> the median and partition other values around it, which can be performed in
> O(n). If I am not mistaken, this would make Polygon2D.create run in O(n
> log(n)) rather than O(n log^2(n)) today.
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