Github user yhuai commented on a diff in the pull request:
https://github.com/apache/spark/pull/6723#discussion_r32085449
--- Diff: sql/hive/src/main/scala/org/apache/spark/sql/hive/hiveUdfs.scala
---
@@ -81,6 +82,8 @@ private[hive] case class HiveSimpleUdf(funcWrapper:
HiveFunctionWrapper, childre
override def nullable: Boolean = true
+ override def checkInputDataTypes(): TypeCheckResult =
TypeCheckResult.TypeCheckSuccess
--- End diff --
So, we do not check input data types for HiveSimpleUdf? Is it because we
cannot get the required data types from a Hive function?
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