MaxGekk commented on code in PR #40817:
URL: https://github.com/apache/spark/pull/40817#discussion_r1174422416
##########
sql/core/src/test/scala/org/apache/spark/sql/errors/QueryExecutionErrorsSuite.scala:
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@@ -858,6 +858,15 @@ class QueryExecutionErrorsSuite
"any enclosing class nor any supertype")),
sqlState = "XX000")
}
+
+ test("SPARK-42845: merge unsupported by aggregate window function") {
+ checkError(
+ intercept[SparkUnsupportedOperationException]{
+ RowNumber().mergeExpressions
Review Comment:
Can you trigger the error from user space (by SQL statement, for instance)?
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