Kurt Young created FLINK-6150:
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Summary: change DataSetCost to FlinkRelOptCost
Key: FLINK-6150
URL: https://issues.apache.org/jira/browse/FLINK-6150
Project: Flink
Issue Type: Sub-task
Reporter: Kurt Young
Currently the only {{RelOptCost}} we have is {{DataSetCost}}, but it's also
used in StreamTableEnvironment. And once we introduce an additional logical
operator layer, we also need a cost representation. Renaming {{DataSetCost}} to
{{FlinkRelOptCost}} and use it in both logical and physical environment seems
to be a possible solution.
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