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From "Ron Hu (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SPARK-17073) generate basic stats for column
Date Tue, 16 Aug 2016 06:27:20 GMT
Ron Hu created SPARK-17073:
------------------------------

             Summary: generate basic stats for column
                 Key: SPARK-17073
                 URL: https://issues.apache.org/jira/browse/SPARK-17073
             Project: Spark
          Issue Type: Sub-task
          Components: Optimizer
    Affects Versions: 2.0.0
            Reporter: Ron Hu


For a specified column, we need to generate basic stats including max, min, number of nulls,
number of distinct values, max column length, average column length.



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