[jira] [Created] (FLINK-6089) Implement decoration phase for rewriting predicated logical plan after volcano optimization phase

[Shang Yuanchun (Jira)]

Shaoxuan Wang created FLINK-6089:
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             Summary: Implement decoration phase for rewriting predicated logical plan after volcano optimization phase
                 Key: FLINK-6089
                 URL: https://issues.apache.org/jira/browse/FLINK-6089
             Project: Flink
          Issue Type: Sub-task
            Reporter: Shaoxuan Wang
            Assignee: Shaoxuan Wang


At present, there is no chance to modify the DataStreamRel tree after the volcano optimization. We consider to add a decoration phase after volcano optimization phase. Decoration phase is dedicated for rewriting predicated logical plan and is independent of cost module. After decoration phase is added, we get the chance to apply retraction rules at this phase.



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