Spark Dataframe: Generate an Array of Tuple from a Map type

Question

My downstream source does not support a Map type and my source does and as such sends this. I need to convert this map into an array of struct (tuple).

Scala support Ma

Answer 1

Just use an udf:

val toArray = udf((vs: Map[String, String]) => vs.toArray)

and adjust input type according to your needs.