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https://issues.apache.org/jira/browse/FLINK-17693?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17107299#comment-17107299
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Kurt Young commented on FLINK-17693:
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isn't TypeSerializer enough?

> Add createTypeInformation to DynamicTableSink#Context
> -----------------------------------------------------
>
>                 Key: FLINK-17693
>                 URL: https://issues.apache.org/jira/browse/FLINK-17693
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Table SQL / API
>            Reporter: Jark Wu
>            Assignee: Jark Wu
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.11.0
>
>
> Currently, we have {{createTypeInformation}} on 
> {{DynamicTableSource#Context}}, but not on {{DynamicTableSink#Context}}.
> In some sink connectors, we need to buffer the {{RowData}} and flush at some 
> interval. So we need to copy the {{RowData}} if object reuse is enabled, then 
> the internal TypeInformation is needed to get the RowData 
> TypeSerializer#copy. 



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