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https://issues.apache.org/jira/browse/FLINK-2998?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15249739#comment-15249739
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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_r60396134
--- Diff:
flink-tests/src/test/java/org/apache/flink/test/javaApiOperators/JoinITCase.java
---
@@ -104,6 +112,51 @@ public void
testeUDFJoinOnTuplesWithMultipleKeyFieldPositions() throws Exception
}
@Test
+ public void testeUDFJoinOnTuplesWithMultipleKeyFieldPositions2() throws
Exception {
--- End diff --
Comments of the `CoGroupITCase` apply here as well.
> 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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