Github user lianhuiwang commented on a diff in the pull request:
https://github.com/apache/spark/pull/13706#discussion_r119123747
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/FunctionRegistry.scala
---
@@ -107,6 +110,14 @@ class SimpleFunctionRegistry extends FunctionRegistry {
functionBuilders.remove(name).isDefined
}
+ override def dropMacro(name: String): Boolean = synchronized {
--- End diff --
Hive can drop temporary function using command 'drop Macro'. And it also
can drop temporary macro using command 'drop temporary function'.
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