[jira] [Created] (ASTERIXDB-1330) NPE in ExternalGroupByOperator for open types

[Yingyi Bu (JIRA)]

Yingyi Bu created ASTERIXDB-1330:
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             Summary: NPE in ExternalGroupByOperator for open types
                 Key: ASTERIXDB-1330
                 URL: https://issues.apache.org/jira/browse/ASTERIXDB-1330
             Project: Apache AsterixDB
          Issue Type: Bug
            Reporter: Yingyi Bu
            Assignee: Yingyi Bu


The NPE results from the assumption that normalizedKeyComputerFactory can never 
be null:
https://github.com/apache/incubator-asterixdb-hyracks/blob/master/hyracks/hyracks-dataflow-std/src/main/java/org/apache/hyracks/dataflow/std/group/external/ExternalGroupBuildOperatorNodePushable.java#L74

https://github.com/apache/incubator-asterixdb-hyracks/blob/master/hyracks/hyracks-dataflow-std/src/main/java/org/apache/hyracks/dataflow/std/group/external/ExternalGroupWriteOperatorNodePushable.java#L67



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