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Posted to dev@kylin.apache.org by "liyang (JIRA)" <ji...@apache.org> on 2016/03/14 08:26:33 UTC

[jira] [Created] (KYLIN-1492) Custom dimension encoding

liyang created KYLIN-1492:
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             Summary: Custom dimension encoding
                 Key: KYLIN-1492
                 URL: https://issues.apache.org/jira/browse/KYLIN-1492
             Project: Kylin
          Issue Type: Bug
    Affects Versions: v1.5.0
            Reporter: liyang
            Assignee: liyang


Currently dimension is encoded by either dictionary or fixed-length. There could be better custom encoding to support cases like bank account or card ID. This will help enabling some ultra high cardinality columns, and at the same time make data more compressed and save some storage.



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