[jira] [Created] (FLINK-12906) Port OperationTreeBuilder to Java

[Shang Yuanchun (Jira)]

Hequn Cheng created FLINK-12906:
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             Summary: Port OperationTreeBuilder to Java
                 Key: FLINK-12906
                 URL: https://issues.apache.org/jira/browse/FLINK-12906
             Project: Flink
          Issue Type: Improvement
          Components: Table SQL / API
            Reporter: Hequn Cheng
            Assignee: Hequn Cheng


As discussed with [~dawidwys], even we can't move it to the API module yet, but we could already migrate it to java. This might be a good idea, because some new features added there that use scala features, any such additions are making the future migration harder.



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