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https://issues.apache.org/jira/browse/FLINK-19847?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17222027#comment-17222027
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Jark Wu commented on FLINK-19847:
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[~zhoujira86] could you describe your use case and why you need the nested
lookup key join?
> Can we create a fast support on the Nested table join?
> ------------------------------------------------------
>
> Key: FLINK-19847
> URL: https://issues.apache.org/jira/browse/FLINK-19847
> Project: Flink
> Issue Type: Wish
> Components: API / DataStream
> Affects Versions: 1.11.1
> Reporter: xiaogang zhou
> Priority: Major
>
> In CommonLookupJoin, one TODO is
> support nested lookup keys in the future,
> // currently we only support top-level lookup keys
>
> can we create a fast support on the Array join? thx
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