[jira] [Created] (FLINK-31654) DataStreamUtils.reinterpretAsKeyedStream() should not override the user specified chaining strategy.

["Jiangjie Qin (Jira)" <ji...@apache.org>]

Jiangjie Qin created FLINK-31654:
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             Summary: DataStreamUtils.reinterpretAsKeyedStream() should not override the user specified chaining strategy.
                 Key: FLINK-31654
                 URL: https://issues.apache.org/jira/browse/FLINK-31654
             Project: Flink
          Issue Type: Bug
          Components: API / DataStream
    Affects Versions: 1.15.4, 1.16.1, 1.14.6, 1.17.0
            Reporter: Jiangjie Qin


Currently {{DataStreamUtils.reinterpretAsKeyedStream()}} does not work well with batch jobs. There are two issues:
 # The input to the downstream operator will not be sorted. So users need to sort the records by themselves.
 # The result {{KeyedStream}} will still override the chaining strategy of the downstream operator to {{HEAD.}} This breaks the operator chain and defeats the purpose of reinterpreting the stream instead of calling {{keyBy.}}

This ticket tends to address the second issue.



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