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Posted to issues@calcite.apache.org by "Ruben Q L (Jira)" <ji...@apache.org> on 2020/08/12 15:04:00 UTC

[jira] [Assigned] (CALCITE-4113) Support LEFT join in EnumerableMergeJoin

     [ https://issues.apache.org/jira/browse/CALCITE-4113?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ruben Q L reassigned CALCITE-4113:
----------------------------------

    Assignee: Ruben Q L

> Support LEFT join in EnumerableMergeJoin
> ----------------------------------------
>
>                 Key: CALCITE-4113
>                 URL: https://issues.apache.org/jira/browse/CALCITE-4113
>             Project: Calcite
>          Issue Type: New Feature
>          Components: core
>            Reporter: Ruben Q L
>            Assignee: Ruben Q L
>            Priority: Major
>
> Currently, EnumerableMergeJoin supports INNER, SEMI, and ANTI join.
> The goal of this ticket is to support also LEFT join (which should be a combination of INNER join results + ANTI join results with a NULL on the right).
> LEFT EnumerableMergeJoin should maintain the order of the left-hand-side of the join.



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