Github user yhuai commented on a diff in the pull request:
https://github.com/apache/spark/pull/10520#discussion_r49359695
--- Diff: sql/hive/src/main/scala/org/apache/spark/sql/hive/HiveShim.scala
---
@@ -123,6 +126,24 @@ private[hive] object HiveShim {
// for Serialization
def this() = this(null)
+ override def hashCode(): Int = {
+ if (instance != null && instance.isInstanceOf[GenericUDFMacro]) {
--- End diff --
Hive's macro is kind of special. I do not think users can use a class that
extends GenericUDFMacro (You can take a look at hive's function registry. Macro
registration is handled by registerMacro.).
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