Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/3851#discussion_r116592490
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/plan/logical/operators.scala
---
@@ -215,14 +215,22 @@ case class Aggregate(
}
override def validate(tableEnv: TableEnvironment): LogicalNode = {
-
+ implicit val relBuilder: RelBuilder = tableEnv.getRelBuilder
val resolvedAggregate =
super.validate(tableEnv).asInstanceOf[Aggregate]
val groupingExprs = resolvedAggregate.groupingExpressions
val aggregateExprs = resolvedAggregate.aggregateExpressions
aggregateExprs.foreach(validateAggregateExpression)
groupingExprs.foreach(validateGroupingExpression)
def validateAggregateExpression(expr: Expression): Unit = expr match {
+ case Alias(child, _, _) => validateAggregateExpression(child)
--- End diff --
rename `child` as `Aggregate` has a member `child` which might be confusing
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