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Posted to dev@flink.apache.org by "Yunhong Zheng (Jira)" <ji...@apache.org> on 2022/12/12 07:09:00 UTC

[jira] [Created] (FLINK-30369) Fix FlinkFilterJoinRule push wrong filters to another side while join type is left/right outer join

Yunhong Zheng created FLINK-30369:
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             Summary: Fix FlinkFilterJoinRule push wrong filters to another side while join type is left/right outer join
                 Key: FLINK-30369
                 URL: https://issues.apache.org/jira/browse/FLINK-30369
             Project: Flink
          Issue Type: Sub-task
          Components: Table SQL / Planner
    Affects Versions: 1.16.1
            Reporter: Yunhong Zheng
             Fix For: 1.17.0


Now, if join type is left/right outer join,  FlinkFilterJoinRule will push wrong filters to another side by extracting filters from join conditions. If conditions contain IS_NULL or IS_NOT_NULL filters and join type is left/right join, it cannot push this filter to another side.



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