Github user chenghao-intel commented on a diff in the pull request:
https://github.com/apache/spark/pull/2802#discussion_r19854862
--- Diff: sql/hive/src/main/scala/org/apache/spark/sql/hive/hiveUdfs.scala
---
@@ -268,7 +269,7 @@ private[hive] case class HiveGenericUdtf(
protected lazy val function: GenericUDTF = createFunction()
@transient
- protected lazy val inputInspectors =
children.map(_.dataType).map(toInspector)
+ protected lazy val inputInspectors = children.map( ex =>
toInspector(ex.dataType))
--- End diff --
`children.map(toInspector)` instead, we should always get the
ObjectInspector via expression. Sorry it's a legacy bug in my PR.
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