[jira] [Created] (FLINK-13099) Add a new type UNDEFINED of shuffle mode

[Shang Yuanchun (Jira)]

Biao Liu created FLINK-13099:
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             Summary: Add a new type UNDEFINED of shuffle mode
                 Key: FLINK-13099
                 URL: https://issues.apache.org/jira/browse/FLINK-13099
             Project: Flink
          Issue Type: Improvement
          Components: API / DataStream
            Reporter: Biao Liu
            Assignee: Biao Liu
             Fix For: 1.9.0


The {{UNDEFINED}} type is the default value of shuffle mode. If there is no specific {{PartitionTransformation}}, the shuffle mode would be {{UNDEFINED}}.
 This new shuffle type leaves some space for optimization later. The optimization might be based on resources or some global settings.



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