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https://issues.apache.org/jira/browse/FLINK-33328?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated FLINK-33328:
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Labels: pull-request-available (was: )
> Allow TwoPhaseCommittingSink WithPreCommitTopology to alter the type of the
> Committable
> ---------------------------------------------------------------------------------------
>
> Key: FLINK-33328
> URL: https://issues.apache.org/jira/browse/FLINK-33328
> Project: Flink
> Issue Type: Sub-task
> Components: API / DataStream, Connectors / Common
> Reporter: Peter Vary
> Priority: Major
> Labels: pull-request-available
>
> In case of the Iceberg Sink, we would like to use the _WithPreCommitTopology_
> to aggregate the writer results and create a single committable from them. So
> we would like to change both the type, and the number of the messages. Using
> the current _WithPreCommitTopology_ interface we can work around the issue by
> using a Tuple, or POJO where some of the fields are used only before the
> _addPreCommitTopology_ method, and some of the fields are only used after the
> method, but this seems more like abusing the interface than using it.
> This is a more generic issue where the _WithPreCommitTopology_ should provide
> a way to transform not only the data, but the type of the data channelled
> through it.
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