Github user nongli commented on a diff in the pull request:
https://github.com/apache/spark/pull/11209#discussion_r56906895
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/misc.scala
---
@@ -423,6 +345,121 @@ case class Murmur3Hash(children: Seq[Expression],
seed: Int) extends Expression
case udt: UserDefinedType[_] => computeHash(input, udt.sqlType,
result, ctx)
}
}
+
+ protected def hasherClassName: String
+}
+
+/**
+ * Base class for interpreted hash functions.
+ */
+abstract class InterpretedHashFunction[E] {
--- End diff --
Should we just change this to always reutrn long and downcast where we
currently use int?
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