[jira] [Resolved] (SPARK-15733) Makes the explain output less verbose by hiding some verbose output like None, null, empty List, and etc..

["Cheng Lian (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-15733?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Cheng Lian resolved SPARK-15733.
--------------------------------
       Resolution: Fixed
    Fix Version/s: 2.0.0

Issue resolved by pull request 13470
[https://github.com/apache/spark/pull/13470]

> Makes the explain output less verbose by hiding some verbose output like None, null, empty List, and etc..
> ----------------------------------------------------------------------------------------------------------
>
>                 Key: SPARK-15733
>                 URL: https://issues.apache.org/jira/browse/SPARK-15733
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>            Reporter: Sean Zhong
>            Assignee: Sean Zhong
>            Priority: Minor
>             Fix For: 2.0.0
>
>
> In the output of {{dataframe.explain()}}, we often see verbose string pattern like {{None, [], {}, null, Some(tableName)}}.
> For example, for {{spark.sql("show tables").explain()}}, we get:
> {code}
> == Physical Plan ==
> ExecutedCommand
> :  +- ShowTablesCommand None, None
> {code}
> It will be easier to read if we can optimize it to:
> {code}
> == Physical Plan ==
> ExecutedCommand
> :  +- ShowTablesCommand
> {code}



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