[jira] [Created] (FLINK-22317) Support DROP column/constraint/watermark for ALTER TABLE statement

[Shang Yuanchun (Jira)]

Jark Wu created FLINK-22317:
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             Summary: Support DROP column/constraint/watermark for ALTER TABLE statement
                 Key: FLINK-22317
                 URL: https://issues.apache.org/jira/browse/FLINK-22317
             Project: Flink
          Issue Type: Sub-task
          Components: Table SQL / API
            Reporter: Jark Wu






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