Aljoscha Krettek created FLINK-5720:
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Summary: Deprecate "Folding" in all of DataStream API
Key: FLINK-5720
URL: https://issues.apache.org/jira/browse/FLINK-5720
Project: Flink
Issue Type: Improvement
Components: DataStream API
Reporter: Aljoscha Krettek
Folding is an operation that cannot be done incrementally in a distributed way
and that also cannot be done on merging windows. Now that we have
{{AggregatingState}} and aggregate operations we should deprecate folding in
the APIs and deprecate {{FoldingState}}.
I suggest to remove folding completely in Flink 2.0
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