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https://issues.apache.org/jira/browse/FLINK-20281?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17239608#comment-17239608
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Jark Wu commented on FLINK-20281:
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Yes [~zhouqi].
> Window aggregation supports changelog stream input
> --------------------------------------------------
>
> Key: FLINK-20281
> URL: https://issues.apache.org/jira/browse/FLINK-20281
> Project: Flink
> Issue Type: New Feature
> Components: Table SQL / Planner, Table SQL / Runtime
> Reporter: Jark Wu
> Priority: Major
> Attachments: screenshot-1.png
>
>
> Currently, window aggregation doesn't support to consume a changelog stream.
> This makes it impossible to do a window aggregation on changelog sources
> (e.g. Kafka with Debezium format, or upsert-kafka, or mysql-cdc).
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