hailong wang created FLINK-14275:
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Summary: Window Aggregate function support a RichFunction
Key: FLINK-14275
URL: https://issues.apache.org/jira/browse/FLINK-14275
Project: Flink
Issue Type: Improvement
Components: API / DataStream
Affects Versions: 1.9.0
Reporter: hailong wang
Fix For: 1.10.0
Now, window aggregate function cannot be a RichFunction. In other words, open
function can not be invoked and runtimeContext cannot be fetched in
RichAggregateFunction.
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