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https://issues.apache.org/jira/browse/SPARK-13553?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15171817#comment-15171817
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Apache Spark commented on SPARK-13553:
--------------------------------------

User 'liancheng' has created a pull request for this issue:
https://github.com/apache/spark/pull/11431

> Migrate basic inspection operations
> -----------------------------------
>
>                 Key: SPARK-13553
>                 URL: https://issues.apache.org/jira/browse/SPARK-13553
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL
>    Affects Versions: 2.0.0
>            Reporter: Cheng Lian
>            Assignee: Cheng Lian
>
> Should migrate the following methods and corresponding tests to Dataset:
> {noformat}
> - Basic inspection operations
>   - dtypes
>   - columns
>   - printSchema
>   - explain
>   - Column accessors
>     - col
>     - apply
> {noformat}



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