[jira] [Created] (FLINK-19883) Support "IF EXISTS" in DDL for ALTER TABLE

[Jira]

Ingo Bürk created FLINK-19883:
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             Summary: Support "IF EXISTS" in DDL for ALTER TABLE
                 Key: FLINK-19883
                 URL: https://issues.apache.org/jira/browse/FLINK-19883
             Project: Flink
          Issue Type: Improvement
          Components: Table SQL / API
    Affects Versions: 1.11.2
            Reporter: Ingo Bürk


ALTER TABLE does not seem to support the "IF EXISTS" part in the DDL, but the 
corresponding methods Catalog#renameTable and Catalog#alterTable do support it.



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