Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/1981#discussion_r64565786
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/api/table/plan/logical/operators.scala
---
@@ -269,22 +269,60 @@ case class Join(
condition: Option[Expression]) extends BinaryNode {
override def output: Seq[Attribute] = {
- joinType match {
- case JoinType.INNER => left.output ++ right.output
- case j => throw new ValidationException(s"Unsupported JoinType: $j")
+ left.output ++ right.output
+ }
+
+ private case class JoinFieldReference(
+ name: String,
+ resultType: TypeInformation[_],
+ left: RelNode,
--- End diff --
I think JoinFieldReference should rather use `LogicalNode` instead of
`RelNode` to refer to the inputs of the join.
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