[jira] [Created] (IOTDB-3930) Apply visitor mode for Expression

[liaolanyu (Jira)]

liaolanyu created IOTDB-3930:
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             Summary: Apply visitor mode for Expression
                 Key: IOTDB-3930
                 URL: https://issues.apache.org/jira/browse/IOTDB-3930
             Project: Apache IoTDB
          Issue Type: Improvement
            Reporter: liaolanyu
            Assignee: liaolanyu






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