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Posted to dev@hive.apache.org by "Navis (JIRA)" <ji...@apache.org> on 2014/09/04 10:51:51 UTC

[jira] [Created] (HIVE-7978) Implement SplitSampler for parallel orderby

Navis created HIVE-7978:
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             Summary: Implement SplitSampler for parallel orderby
                 Key: HIVE-7978
                 URL: https://issues.apache.org/jira/browse/HIVE-7978
             Project: Hive
          Issue Type: Improvement
          Components: Query Processor
            Reporter: Navis
            Assignee: Navis
            Priority: Minor


Currently for parallel order-by, random sampler is the only choice, which can be not good in some cases.



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