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https://issues.apache.org/jira/browse/FLINK-20552?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17247002#comment-17247002
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Leonard Xu commented on FLINK-20552:
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Hi, [~meijies]
Thanks for the report， A simple way to fix this is wrapping the
`JdbcBatchingOutputFormat` with `GenericJdbcSinkFunction`
[here|https://github.com/apache/flink/blob/master/flink-connectors/flink-connector-jdbc/src/main/java/org/apache/flink/connector/jdbc/table/JdbcDynamicTableSink.java#L87%C2%A0]
{code:java}
return OutputFormatProvider.of(builder.build());
=>
return SinkFunctionProvider.of(new GenericJdbcSinkFunction<>(builder.build()));
{code}
And we can add a test for this change, [~meijies] Do you like to help fix this ?
> Jdbc connector don't sink buffer data when 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
> Priority: Major
> Labels: starter
>
> 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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