Jark Wu created FLINK-20281:
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Summary: 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
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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