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From "godfrey he (JIRA)" <j...@apache.org>
Subject [jira] [Created] (FLINK-12519) Introduce planner rules about semi/anti join
Date Wed, 15 May 2019 12:29:00 GMT
godfrey he created FLINK-12519:
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             Summary: Introduce planner rules about semi/anti join
                 Key: FLINK-12519
                 URL: https://issues.apache.org/jira/browse/FLINK-12519
             Project: Flink
          Issue Type: New Feature
          Components: Table SQL / Planner
            Reporter: godfrey he
            Assignee: godfrey he


This issue aims to introduce planner rules about semi/anti join, rules include:
1. {{FlinkSemiAntiJoinFilterTransposeRule}} that pushes semi/anti join down in a tree past
a filter
2. {{FlinkSemiAntiJoinJoinTransposeRule}} that pushes semi/anti join down in a tree past a
non semi/anti join
3. {{FlinkSemiAntiJoinProjectTransposeRule}} that push semi/anti join down in a tree past
a project
4. {{ProjectSemiAntiJoinTransposeRule}} that pushes a project down in a tree past a semi/anti
join

planner rules about non semi/anti join will be introduced in [FLINK-12509|https://issues.apache.org/jira/browse/FLINK-12509].




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