[jira] [Updated] (SPARK-15903) Support AllColumn expression in UDF functions

["Hyukjin Kwon (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-15903?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hyukjin Kwon updated SPARK-15903:
---------------------------------
    Labels: bulk-closed  (was: )

> Support AllColumn expression in UDF functions
> ---------------------------------------------
>
>                 Key: SPARK-15903
>                 URL: https://issues.apache.org/jira/browse/SPARK-15903
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 1.6.1
>            Reporter: Lijie Xu
>            Priority: Minor
>              Labels: bulk-closed
>
> Sometimes, we want to put all the columns in the UDF functions such as "concat()". We would like to use simple $"*" instead of listing each column as follows.
> val df = sc.makeRDD(Array((1, "A"), (2, "B"), (3, "C"))).toDF("Id", "Name")
> val result = df.select($"*", concat($"\*").as("UDF")) // failed
> val result = df.select($"*", concat($"Id", $"Name").as("UDF")) // passed
> result.show()



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