Github user marmbrus commented on a diff in the pull request:
https://github.com/apache/spark/pull/4602#discussion_r27710490
--- Diff: sql/core/src/main/scala/org/apache/spark/sql/DataFrame.scala ---
@@ -700,12 +700,15 @@ class DataFrame private[sql](
*/
def explode[A <: Product : TypeTag](input: Column*)(f: Row =>
TraversableOnce[A]): DataFrame = {
val schema =
ScalaReflection.schemaFor[A].dataType.asInstanceOf[StructType]
- val attributes = schema.toAttributes
+ // TODO handle the metadata?
--- End diff --
I don't think there ever can be metadata, can there?
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