[jira] [Created] (FLINK-19871) add hash(primary key） to kafka partition sink mapping

[Jira]

底限 created FLINK-19871:
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             Summary: add hash(primary key） to kafka partition sink mapping 
                 Key: FLINK-19871
                 URL: https://issues.apache.org/jira/browse/FLINK-19871
             Project: Flink
          Issue Type: Improvement
          Components: Connectors / Kafka
            Reporter: 底限






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