maropu commented on a change in pull request #31547:
URL: https://github.com/apache/spark/pull/31547#discussion_r574176706
##########
File path:
sql/core/src/test/scala/org/apache/spark/sql/execution/SparkPlanSuite.scala
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@@ -97,4 +98,13 @@ class SparkPlanSuite extends QueryTest with
SharedSparkSession {
}
}
}
+
+ test("SPARK-34420: Throw exception if non-streaming Deduplicate is not
replaced by aggregate") {
+ val df = spark.range(10)
+ val planner = spark.sessionState.planner
+ val deduplicate = Deduplicate(df.queryExecution.analyzed.output,
df.queryExecution.analyzed)
+ intercept[IllegalStateException] {
+ planner.plan(deduplicate)
+ }
Review comment:
nit: could you check the error message, too? It looks fine, otherwise.
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