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Posted to dev@lucene.apache.org by "Adrien Grand (JIRA)" <ji...@apache.org> on 2019/07/19 08:57:00 UTC

[jira] [Created] (LUCENE-8928) BKDWriter could make splitting decisions based on the actual range of values

Adrien Grand created LUCENE-8928:
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             Summary: 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


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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