[jira] [Commented] (SPARK-20913) Reference is ambiguous exception during dropDuplicates

["Sean Owen (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-20913?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16028145#comment-16028145 ] 

Sean Owen commented on SPARK-20913:
-----------------------------------

I'm not clear what you are trying to report here. There is no concrete example .

> Reference is ambiguous exception during dropDuplicates
> ------------------------------------------------------
>
>                 Key: SPARK-20913
>                 URL: https://issues.apache.org/jira/browse/SPARK-20913
>             Project: Spark
>          Issue Type: Bug
>          Components: PySpark
>    Affects Versions: 1.6.0
>         Environment: Spark 1.6
>            Reporter: Saurabh
>              Labels: PySpark
>   Original Estimate: 216h
>  Remaining Estimate: 216h
>
> I'm getting an error when I try to do .dropDuplicates, its giving u"Reference 'xcol14x' is ambiguous exception.
>  Changing the alias cannot be a solution as , if I have 40 column in each dataframe its merely impossible to change the name of each.



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