Github user davies commented on a diff in the pull request:
https://github.com/apache/spark/pull/7113#discussion_r33649592
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/math.scala
---
@@ -354,6 +356,35 @@ case class Pow(left: Expression, right: Expression)
}
}
+/**
+ * Performs the inverse operation of HEX.
+ * Resulting characters are returned as a byte array.
+ */
+case class UnHex(child: Expression)
+ extends UnaryExpression with AutoCastInputTypes with Serializable {
+
+ override def expectedChildTypes: Seq[DataType] = Seq(StringType)
--- End diff --
hex() return StringType, so unhex() should take StringType, not BinaryType.
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at infrastruct...@apache.org or file a JIRA ticket
with INFRA.
---
---------------------------------------------------------------------
To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org
For additional commands, e-mail: reviews-h...@spark.apache.org
