Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/1838#discussion_r59229638
--- Diff:
flink-optimizer/src/main/java/org/apache/flink/optimizer/dag/TwoInputNode.java
---
@@ -427,6 +428,14 @@ public void
computeInterestingPropertiesForInputs(CostEstimator estimator) {
}
}
+ if
(child1.getInputs().iterator().hasNext()) {
--- End diff --
This change is not necessary. The data distribution should be set within
`GlobalProperties`. I'll point you to the correct places.
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