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https://issues.apache.org/jira/browse/SPARK-9392?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Reynold Xin resolved SPARK-9392.
--------------------------------
       Resolution: Fixed
         Assignee: Yanbo Liang
    Fix Version/s: 1.6.0

> Dataframe drop should work on unresolved columns
> ------------------------------------------------
>
>                 Key: SPARK-9392
>                 URL: https://issues.apache.org/jira/browse/SPARK-9392
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL
>            Reporter: Michael Armbrust
>            Assignee: Yanbo Liang
>            Priority: Critical
>             Fix For: 1.6.0
>
>
> i.e. I would expect `df.drop($"colName")` to work.  Another example is the 
> test case here: 
> https://github.com/apache/spark/pull/6585/files#diff-5d2ebf4e9ca5a990136b276859769289R355
>  which I would expect to not be a no-op.



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