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https://issues.apache.org/jira/browse/FLINK-12703?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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godfrey he updated FLINK-12703:
-------------------------------
    Description: In 
[FLINK-11822|https://issues.apache.org/jira/browse/FLINK-11822], we have 
introduced all Flink metadata handlers, several RelNode s (e.g. look up join) 
have not be implemented. So this issue aims to introduce all metadata handlers 
on SEMI/ANTI join and lookup join.  (was: In 
[FLINK-11822|https://issues.apache.org/jira/browse/FLINK-11822], we have 
introduced all Flink metadata handlers, several RelNode s (e.g. look up join) 
have not be implemented. So this issue aims to introduce all metadata handlers 
on SEMI/ATNI join and lookup join.)

> Introduce metadata handlers on SEMI/ANTI join and lookup join
> -------------------------------------------------------------
>
>                 Key: FLINK-12703
>                 URL: https://issues.apache.org/jira/browse/FLINK-12703
>             Project: Flink
>          Issue Type: New Feature
>          Components: Table SQL / Planner
>            Reporter: godfrey he
>            Assignee: godfrey he
>            Priority: Major
>
> In [FLINK-11822|https://issues.apache.org/jira/browse/FLINK-11822], we have 
> introduced all Flink metadata handlers, several RelNode s (e.g. look up join) 
> have not be implemented. So this issue aims to introduce all metadata 
> handlers on SEMI/ANTI join and lookup join.



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