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https://issues.apache.org/jira/browse/FLINK-12088?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jark Wu closed FLINK-12088.
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Resolution: Fixed
Fix Version/s: 1.9.0
Fixed in 1.9.0: da6d93cf299125e70e7195068118fa63bc359bf4
> Introduce unbounded streaming inner/left/right/full join operator
> -----------------------------------------------------------------
>
> Key: FLINK-12088
> URL: https://issues.apache.org/jira/browse/FLINK-12088
> Project: Flink
> Issue Type: Improvement
> Components: Table SQL / Runtime
> Reporter: Kurt Young
> Assignee: Jark Wu
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.9.0
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> This operator is responsible for unbounded streaming inner/left/right/full
> join, and will be optimized in following cases:
> # If the join keys (with equality condition) are also primary key, we will
> have a more efficient state layout
> # If the inputs have primary keys, but join keys are not primary key, we can
> also come up with an efficient state layout
> # Inputs don't have primary keys, this will go to default implementation
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