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https://issues.apache.org/jira/browse/FLINK-17459?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17095458#comment-17095458
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Jark Wu commented on FLINK-17459:
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We suggest to use {{JDBCUpsertTableSink}} in Table API & SQL which both support
append-only queries and updating queries.
> JDBCAppendTableSink not support flush by flushIntervalMills
> --------------------------------------------------------------
>
> Key: FLINK-17459
> URL: https://issues.apache.org/jira/browse/FLINK-17459
> Project: Flink
> Issue Type: Improvement
> Components: Connectors / JDBC
> Affects Versions: 1.10.0
> Reporter: ranqiqiang
> Priority: Major
>
> {{JDBCAppendTableSink just support append by
> "JDBCAppendTableSinkBuilder#batchSize",}}{{not support like
> "JDBCUpsertTableSink#flushIntervalMills"}}
>
> {{If batchSize=5000 , my data rows=5000*N+1 ,then last one record could not
> be append !!}}
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