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From "Kurt Young (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (FLINK-12088) Introduce unbounded streaming inner join operator
Date Mon, 20 May 2019 01:27:00 GMT

     [ https://issues.apache.org/jira/browse/FLINK-12088?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Kurt Young reassigned FLINK-12088:
----------------------------------

    Assignee: Jark Wu  (was: Kurt Young)

> Introduce unbounded streaming inner 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
>
> This operator is responsible for unbounded streaming inner 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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