[jira] [Created] (FLINK-8998) Add user-defined watermark assigner and timestamp extractor to the test job

[Shang Yuanchun (Jira)]

Stefan Richter created FLINK-8998:
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             Summary: Add user-defined watermark assigner and timestamp extractor to the test job
                 Key: FLINK-8998
                 URL: https://issues.apache.org/jira/browse/FLINK-8998
             Project: Flink
          Issue Type: Sub-task
            Reporter: Stefan Richter






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