spark dataframe explode function error

Question

I'd like to use the explode function on a DF, I just write the code like the document:

    case class Url(url:String)
    val temp3 = temp2.explode($"urls"){
        case Row(urls:Array[String]) => urls.map(Url(_))
    }

However , it came out:

error: not found: value Row

The DF temp2 is like:

temp2.printSchema()
root
 |-- userid: string (nullable = true)
 |-- urls: array (nullable = true)
 |    |-- element: string (containsNull = true)

Raphael Roth · Accepted Answer · 2016-05-31 06:38:30Z

22

add the following import:

import org.apache.spark.sql.Row

answered May 31, 2016 at 6:38

Raphael Roth

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