godfrey he created FLINK-20513:
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Summary: Separate the implementation of BatchExecExchange and
StreamExecExchange
Key: FLINK-20513
URL: https://issues.apache.org/jira/browse/FLINK-20513
Project: Flink
Issue Type: Sub-task
Components: Table SQL / Planner
Reporter: godfrey he
The issue will separate the implementation of Batch(/Stream)ExecExchange, we
will introduce Batch(/Stream)PhysicalExchange which will extend
{{FlinkPhysicalRel}}, {{BatchExecExchange }} will be moved into
`nodes.exec.batch` package and will implement ExecNode for Exchange,
{{StreamExecExchange}} will be moved into `nodes.exec.stream` package.
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