Hi,

 

       I am a new to Scala and Spark and trying to find relative API in DataFrame to solve my problem as title described. However, I just only find this API DataFrame.col(colName : String) : Column which returns an object of Column. Not the content. If only DataFrame support such API which like Column.toArray : Type is enough for me. But now, it doesnt. How can I do can achieve this function ?

 

Thanks,

Minglei.