[GitHub] [spark] cloud-fan commented on a diff in pull request #36812: [SPARK-39419][SQL] Fix ArraySort to throw an exception when the comparator returns null

[GitBox <gi...@apache.org>]

cloud-fan commented on code in PR #36812:
URL: https://github.com/apache/spark/pull/36812#discussion_r892990862


##########
sql/catalyst/src/main/scala/org/apache/spark/sql/errors/QueryExecutionErrors.scala:
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@@ -2012,4 +2012,12 @@ private[sql] object QueryExecutionErrors extends QueryErrorsBase {
     new SparkException(
       errorClass = "MULTI_VALUE_SUBQUERY_ERROR", messageParameters = Array(plan), cause = null)
   }
+
+  def comparisonResultIsNullError(): Throwable = {
+    new NullPointerException(

Review Comment:
   yea, with the new error class framework, the java exception type doesn't matter any more. We can always use `SparkException`, but we need to add an error class for it.



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