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https://issues.apache.org/jira/browse/SPARK-9325?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14744170#comment-14744170
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Reynold Xin commented on SPARK-9325:
------------------------------------
Do you want to support
collect(df$Age + 1) ?
> Support `collect` on DataFrame columns
> --------------------------------------
>
> Key: SPARK-9325
> URL: https://issues.apache.org/jira/browse/SPARK-9325
> Project: Spark
> Issue Type: Sub-task
> Components: SparkR
> Reporter: Shivaram Venkataraman
>
> This is to support code of the form
> ```
> ages <- collect(df$Age)
> ```
> Right now `df$Age` returns a Column, which has no functions supported.
> Similarly we might consider supporting `head(df$Age)` etc.
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