[jira] [Created] (FLINK-996) NullPointerException while translating union node

[Shang Yuanchun (Jira)]

Till Rohrmann created FLINK-996:
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             Summary: NullPointerException while translating union node
                 Key: FLINK-996
                 URL: https://issues.apache.org/jira/browse/FLINK-996
             Project: Flink
          Issue Type: Bug
            Reporter: Till Rohrmann
            Assignee: Till Rohrmann


The NepheleJobGraphGenerator throws a NullPointerException when translating a binary union operator. The BinaryUnionPlanNode is not replaced by a NAryUnionPlanNode and thus is still treated as a DualInputVertex. Accessing the driver code of the BinaryUnionPlanNode causes then the NullPointerException.



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