Github user ex00 commented on a diff in the pull request:
https://github.com/apache/flink/pull/3033#discussion_r96585254
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/plan/nodes/dataset/DataSetSingleRowJoin.scala
---
@@ -46,6 +47,7 @@ class DataSetSingleRowJoin(
rowRelDataType: RelDataType,
joinCondition: RexNode,
joinRowType: RelDataType,
+ joinType: JoinRelType,
--- End diff --
Good point, but maybe add additional check in other method? for example in
`translateToPlan`.
In this case if ``DataSetSingleRowJoin.computeSelfCost`` don't return best
cost we don't get exception and don't select incorrect ``RelNode``. but if we
whatever get best cost we can throw exception in `translateToPlan` for
incorrect joinType.
What do you mean about it?
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