[jira] [Created] (FLINK-17399) CsvTableSink should also extend from OverwritableTableSink

[Shang Yuanchun (Jira)]

godfrey he created FLINK-17399:
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             Summary: CsvTableSink should also extend from OverwritableTableSink
                 Key: FLINK-17399
                 URL: https://issues.apache.org/jira/browse/FLINK-17399
             Project: Flink
          Issue Type: Improvement
          Components: Table SQL / API
            Reporter: godfrey he
             Fix For: 1.11.0


{{CsvTableSink}} has supported {{writeMode}} which could be {{OVERWRITE}} or {{NO_OVERWRITE}}. When we execute "INSERT OVERWRITE csv_table_sink xx", planners will check whether a table sink is an {{OverwritableTableSink}}.
Now {{CsvTableSink}} does not extend from {{OverwritableTableSink}}, so we can't execute above statement.




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