Github user icexelloss commented on a diff in the pull request:
https://github.com/apache/spark/pull/19872#discussion_r158952133
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/SparkStrategies.scala ---
@@ -273,7 +274,7 @@ abstract class SparkStrategies extends
QueryPlanner[SparkPlan] {
aggregate.AggUtils.planStreamingAggregation(
namedGroupingExpressions,
- aggregateExpressions,
+ aggregateExpressions.map(expr =>
expr.asInstanceOf[AggregateExpression]),
--- End diff --
Yeah streaming aggregation won't work. Good point. Let me add the check.
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