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From "Apache Spark (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (SPARK-17073) generate basic stats for column
Date Wed, 14 Sep 2016 03:57:20 GMT

     [ https://issues.apache.org/jira/browse/SPARK-17073?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Apache Spark reassigned SPARK-17073:
------------------------------------

    Assignee: Apache Spark

> 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
>            Assignee: Apache Spark
>
> 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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