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https://issues.apache.org/jira/browse/FLINK-23319?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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godfrey he reassigned FLINK-23319:
----------------------------------
Assignee: Yang Xu
> Support semi/anti lookup joins
> ------------------------------
>
> Key: FLINK-23319
> URL: https://issues.apache.org/jira/browse/FLINK-23319
> Project: Flink
> Issue Type: New Feature
> Components: Table SQL / Planner
> Reporter: Timo Walther
> Assignee: Yang Xu
> Priority: Minor
>
> Similar to FLINK-23305, we should also allow semi/anti joins for lookup joins
> such as:
> {code}
> SELECT T.*
> FROM MyTable AS T
> WHERE EXISTS (
> SELECT * FROM LookupTable FOR SYSTEM_TIME AS OF T.proctime AS D
> WHERE T.a = D.id)
> {code}
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