CODEWITHSUNDEEP
apache-spark-sql
Neel
Neel

Reputation: 10143

Spark 1.5.2: Extract values from WrappedArray

I have a WrappedArray with the following output that I want to extract values from:

val x = df.select("field1").head().get(0)
println(x)

It produces the following output: 

WrappedArray([false,/tmp,2])

How do I extract the values from the Array?

Upvotes: 1

Views: 2674

Answers (1)

David Griffin
David Griffin

Reputation: 13927

Depends what you want to do with them. You can extract individual items in the array:

df.select($"field1".getItem(0)).head().get(0)

You can explode the DF:

case class ArrayValue(value: String)
df.explode($"field1") {
  case Row(field: Seq[String]) => field.map(ArrayValue(_))
}.show

Upvotes: 2

Related Questions