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https://issues.apache.org/jira/browse/FLINK-2998?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15235342#comment-15235342
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ASF GitHub Bot commented on FLINK-2998:
---------------------------------------
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.
> Support range partition comparison for multi input nodes.
> ---------------------------------------------------------
>
> Key: FLINK-2998
> URL: https://issues.apache.org/jira/browse/FLINK-2998
> Project: Flink
> Issue Type: New Feature
> Components: Optimizer
> Reporter: Chengxiang Li
> Priority: Minor
>
> The optimizer may have potential opportunity to optimize the DAG while it
> found two input range partition are equivalent, we does not support the
> comparison yet.
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