HeartSaVioR commented on a change in pull request #23921:
[SPARK-26560][SQL]:Repeat select on HiveUDF fails
URL: https://github.com/apache/spark/pull/23921#discussion_r361581937
##########
File path:
sql/hive/src/main/scala/org/apache/spark/sql/hive/HiveSessionCatalog.scala
##########
@@ -66,10 +66,11 @@ private[sql] class HiveSessionCatalog(
name: String,
clazz: Class[_],
input: Seq[Expression]): Expression = {
-
- Try(super.makeFunctionExpression(name, clazz, input)).getOrElse {
- var udfExpr: Option[Expression] = None
- try {
+ val originalClassLoader = Thread.currentThread().getContextClassLoader()
Review comment:
It doesn't need to modify original code but just switch context classloader.
Then, use `Utils.withContextClassLoader` and just pass original code into fn.
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