Timo Walther created FLINK-23319:
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Summary: 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
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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