Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/4625#discussion_r139385974
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/plan/nodes/datastream/DataStreamWindowJoin.scala
---
@@ -117,6 +123,11 @@ class DataStreamWindowJoin(
val leftKeys = joinInfo.leftKeys.toIntArray
val rightKeys = joinInfo.rightKeys.toIntArray
+ val relativeWindowSize = leftUpperBound - leftLowerBound
+
+ val returnTypeInfo = CRowTypeInfo(schema.typeInfo)
+
--- End diff --
rm newline
---