Github user dilipbiswal commented on the pull request:
https://github.com/apache/spark/pull/10520#issuecomment-169477260
@yhuai So the instance is authored through createFunction() while computing
returnInspector.
https://github.com/apache/spark/blob/master/sql/hive/src/main/scala/org/apache/spark/sql/hive/HiveShim.scala#L198-#L201
So we think we need to cache the instance in this case as its not a
simpleUDF. Let me know your thoughts.
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