humengyu created FLINK-21665:
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Summary: Create catalog statement should support [IF NOT EXIST]
and [COMMENT]
Key: FLINK-21665
URL: https://issues.apache.org/jira/browse/FLINK-21665
Project: Flink
Issue Type: Improvement
Components: Table SQL / API, Table SQL / Client
Reporter: humengyu
It is a common scenarioIf that we have multiple catalogs:
# comment can help us distinguish between different data sources;
# [IF NOT EXISTS] statement can avoid exception if the catalog already exists.
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