[jira] [Created] (FLINK-7834) cost model supports network cost and memory cost

[Shang Yuanchun (Jira)]

godfrey he created FLINK-7834:
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             Summary: cost model supports network cost and memory cost
                 Key: FLINK-7834
                 URL: https://issues.apache.org/jira/browse/FLINK-7834
             Project: Flink
          Issue Type: New Feature
          Components: Table API & SQL
            Reporter: godfrey he


{{RelOptCost}} defines an interface for optimizer cost in terms of number of row processed, CPU cost, and I/O cost. Flink is a distributed framework, network and memory are also two important cost metrics which should be considered for optimizer. This feature is to extend RelOptCost.



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