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https://issues.apache.org/jira/browse/SPARK-19452?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15852069#comment-15852069
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Apache Spark commented on SPARK-19452:
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User 'actuaryzhang' has created a pull request for this issue:
https://github.com/apache/spark/pull/16794
> Fix bug in the name assignment method in SparkR
> -----------------------------------------------
>
> Key: SPARK-19452
> URL: https://issues.apache.org/jira/browse/SPARK-19452
> Project: Spark
> Issue Type: Bug
> Components: SparkR
> Affects Versions: 2.1.0, 2.2.0
> Reporter: Wayne Zhang
>
> The names method fails to check for validity of the assignment values. This
> can be fixed by calling colnames within names. See example below.
> {code}
> df <- suppressWarnings(createDataFrame(iris))
> # this is error
> colnames(df) <- NULL
> # this should report error
> names(df) <- NULL
> {code}
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