Github user dongjoon-hyun commented on a diff in the pull request:
https://github.com/apache/spark/pull/13930#discussion_r68700193
--- Diff:
sql/hive/src/main/scala/org/apache/spark/sql/hive/HiveSessionCatalog.scala ---
@@ -174,6 +175,18 @@ private[sql] class HiveSessionCatalog(
// xpath_double, xpath_float, xpath_int, xpath_long, xpath_number,
// xpath_short, and xpath_string.
override def lookupFunction(name: FunctionIdentifier, children:
Seq[Expression]): Expression = {
+ try {
+ subLookupFunction(name, children)
+ } catch {
--- End diff --
For the following opinion, I think that is the exact same way of the Spark
1.6 and previous. I think that is not a problem.
> this will fail again as soon as we pass in an argument with a slightly
different value
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