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https://issues.apache.org/jira/browse/SPARK-16894?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15647178#comment-15647178
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Sean Owen commented on SPARK-16894:
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This is best accomplished with a UDF. I think that one of the points of Spark
SQL is that these don't need special language operators
> take function for returning the first n elements of array column
> ----------------------------------------------------------------
>
> Key: SPARK-16894
> URL: https://issues.apache.org/jira/browse/SPARK-16894
> Project: Spark
> Issue Type: New Feature
> Components: SQL
> Reporter: Kapil Singh
>
> take(inputArray, n)
> Returns array containing first n elements of inputArray
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