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Posted to dev@hive.apache.org by "Jesus Camacho Rodriguez (JIRA)" <ji...@apache.org> on 2016/10/21 11:29:58 UTC

[jira] [Created] (HIVE-15029) Add logic to estimate stats for BETWEEN operator

Jesus Camacho Rodriguez created HIVE-15029:
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             Summary: Add logic to estimate stats for BETWEEN operator
                 Key: HIVE-15029
                 URL: https://issues.apache.org/jira/browse/HIVE-15029
             Project: Hive
          Issue Type: Bug
          Components: Statistics
    Affects Versions: 2.1.0
            Reporter: Jesus Camacho Rodriguez
            Assignee: Jesus Camacho Rodriguez


Currently, BETWEEN operator is considered in the default case: reduces the input rows to the half. This may lead to wrong estimates for the number of rows produced by Filter operators.



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