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https://issues.apache.org/jira/browse/FLINK-20552?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17253272#comment-17253272
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Jark Wu commented on FLINK-20552:
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[~meijies], yes, I also find it's not easy to get SinkOperator from the SQL. I
think you can try to use JdbcDynamicTableSink.
> JdbcDynamicTableSink doesn't sink buffered data on checkpoint
> -------------------------------------------------------------
>
> Key: FLINK-20552
> URL: https://issues.apache.org/jira/browse/FLINK-20552
> Project: Flink
> Issue Type: Bug
> Components: Connectors / JDBC, Table SQL / Ecosystem
> Reporter: mei jie
> Assignee: mei jie
> Priority: Major
> Labels: starter
> Fix For: 1.13.0
>
>
> JdbcBatchingOutputFormat is wrapped to OutputFormatSinkFunction``` when
> createSinkTransformation at CommonPhysicalSink class. but
> OutputFormatSinkFunction don't implement CheckpointedFunction interface, so
> the flush method of JdbcBatchingOutputFormat can't be called when checkpoint
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