Github user fhueske commented on a diff in the pull request: https://github.com/apache/flink/pull/4625#discussion_r139386829 --- Diff: flink-libraries/flink-table/src/main/scala/org/apache/flink/table/plan/nodes/datastream/DataStreamWindowJoin.scala --- @@ -196,53 +215,69 @@ class DataStreamWindowJoin( } } + def createEmptyInnerJoinFunction( --- End diff -- rename method to `createEmptyInnerJoin()` as it does not return the function but a joined stream.
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