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https://issues.apache.org/jira/browse/FLINK-12743?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jark Wu closed FLINK-12743.
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Resolution: Fixed
Fix Version/s: 1.9.0
Fixed in 1.9.0: 16818dad7e04fac8f862771a23a702f72e605e72
> Introduce unbounded streaming anti/semi join operator
> -----------------------------------------------------
>
> Key: FLINK-12743
> URL: https://issues.apache.org/jira/browse/FLINK-12743
> Project: Flink
> Issue Type: New Feature
> Components: Table SQL / Runtime
> Reporter: Jark Wu
> 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 semi/anti join, and will
> be optimized in following cases:
> 1. If the join keys (with equality condition) are also primary key, we will
> have a more efficient state layout
> 2. If the inputs have primary keys, but join keys are not primary key, we can
> also come up with an efficient state layout
> 3. Inputs don't have primary keys, this will go to default implementation
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