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Posted to issues@lucene.apache.org by "Ignacio Vera (Jira)" <ji...@apache.org> on 2019/10/16 09:50:00 UTC
[jira] [Resolved] (LUCENE-8928) BKDWriter could make splitting
decisions based on the actual range of values
[ https://issues.apache.org/jira/browse/LUCENE-8928?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ignacio Vera resolved LUCENE-8928.
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Fix Version/s: 8.4
Assignee: Ignacio Vera
Resolution: Fixed
> BKDWriter could make splitting decisions based on the actual range of values
> ----------------------------------------------------------------------------
>
> Key: LUCENE-8928
> URL: https://issues.apache.org/jira/browse/LUCENE-8928
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Adrien Grand
> Assignee: Ignacio Vera
> Priority: Minor
> Fix For: 8.4
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> Currently BKDWriter assumes that splitting on one dimension has no effect on values in other dimensions. While this may be ok for geo points, this is usually not true for ranges (or geo shapes, which are ranges too). Maybe we could get better indexing by re-computing the range of values on each dimension before making the choice of the split dimension?
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