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Posted to dev@flink.apache.org by "godfrey he (JIRA)" <ji...@apache.org> on 2019/05/16 03:36:00 UTC

[jira] [Created] (FLINK-12524) Introduce planner rules about rank

godfrey he created FLINK-12524:
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             Summary: Introduce planner rules about rank
                 Key: FLINK-12524
                 URL: https://issues.apache.org/jira/browse/FLINK-12524
             Project: Flink
          Issue Type: New Feature
          Components: Table SQL / Planner
            Reporter: godfrey he
            Assignee: godfrey he


This issue aims to introduce planner rules about rank, rules include:
1. {{CalcRankTransposeRule}}, that transposes {{FlinkLogicalCalc}} past {{FlinkLogicalRank}}
 to reduce rank input fields.
2. {{RankNumberColumnRemoveRule}}, that emoves the output column of rank number iff there is a equality condition for the rank column.



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