shuai.xu created FLINK-4504:
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Summary: Support user to decide whether the result of an operator
is presistent
Key: FLINK-4504
URL: https://issues.apache.org/jira/browse/FLINK-4504
Project: Flink
Issue Type: Sub-task
Components: DataSet API
Reporter: shuai.xu
Support an api to user for deciding whether they need the result of an operator
to be pipeline, spilled to local file or persisted to distribute file system.
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