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https://issues.apache.org/jira/browse/FLINK-36784?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17900776#comment-17900776
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Ruan Hang commented on FLINK-36784:
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I already have a design for this feature. I would like to work on it. Thanks~
> Support to add metadata columns for data in the meta fields of
> DataChangeEvent at transform
> -------------------------------------------------------------------------------------------
>
> Key: FLINK-36784
> URL: https://issues.apache.org/jira/browse/FLINK-36784
> Project: Flink
> Issue Type: New Feature
> Components: Flink CDC
> Affects Versions: cdc-3.2.1
> Reporter: Ruan Hang
> Assignee: Ruan Hang
> Priority: Major
> Fix For: cdc-3.3.0
>
>
> Flink CDC supports to use some metadata columns in transform, which includes
> as follows.
> ||Field||Data Type||Description||
> |*namespace_name*|String|Name of the namespace that contains the row.|
> |*schema_name*|String|Name of the schema that contains the row.|
> |*table_name*|String|Name of the table that contains the row.|
> |*data_event_type*|String|Operation type of data change event.|
> These metadata columns are from the tableId or op field in DataChangeEvent.
> Some metadata columns are not supported in pipeline connectors, like op_ts.
> These metadata is stored in the meta field in DataChangeEvent.
> I think we should support to add metadata columns for the meta field in
> DataChangeEvent.
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