Github user marmbrus commented on a diff in the pull request:
https://github.com/apache/spark/pull/12708#discussion_r61779384
--- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/Row.scala ---
@@ -335,6 +358,19 @@ trait Row extends Serializable {
def getAs[T](fieldName: String): T = getAs[T](fieldIndex(fieldName))
/**
+ * Returns the value of a given fieldName as a scala.util.Try object.
+ */
+ def attempt[T](fieldName: String): Try[T] =
Try(getAs[T](fieldIndex(fieldName)))
--- End diff --
As I said on the other PR, I don't understand the case where you want to
hide exceptions while pulling values out of a `Row`. It seems the only time
you should get an exception is when you are trying to extract a column value
using the wrong type. This seems like a structural problem with your code (its
not dirty data or something transient, its going to fail for every single row).
As such, I don't think that this is a good addition to the API.
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