[jira] [Created] (FLINK-21851) Refactor BinaryRowDataKeySelector in testing

[Shang Yuanchun (Jira)]

Jingsong Lee created FLINK-21851:
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             Summary: Refactor BinaryRowDataKeySelector in testing
                 Key: FLINK-21851
                 URL: https://issues.apache.org/jira/browse/FLINK-21851
             Project: Flink
          Issue Type: Improvement
            Reporter: Jingsong Lee
            Assignee: Jingsong Lee
             Fix For: 1.13.0


We can introduce a {{HandwrittenKeySelectorUtil}} to replace BinaryRowDataKeySelector newInstance for reduce misunderstanding.



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