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Posted to jira@arrow.apache.org by "Vibhatha Lakmal Abeykoon (Jira)" <ji...@apache.org> on 2022/07/05 13:20:00 UTC

[jira] [Assigned] (ARROW-15584) [C++] Add support for Substrait's RelCommon::Emit

     [ https://issues.apache.org/jira/browse/ARROW-15584?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vibhatha Lakmal Abeykoon reassigned ARROW-15584:
------------------------------------------------

    Assignee: Vibhatha Lakmal Abeykoon

> [C++] Add support for Substrait's RelCommon::Emit
> -------------------------------------------------
>
>                 Key: ARROW-15584
>                 URL: https://issues.apache.org/jira/browse/ARROW-15584
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: C++
>            Reporter: Weston Pace
>            Assignee: Vibhatha Lakmal Abeykoon
>            Priority: Major
>              Labels: substrait
>
> Any relation in Substrait is allowed to "emit" the output which means reordering the columns (and possibly dropping columns?).
> The C++ Substrait consumer currently does not handle this.
> This functionality could probably be handled by a project operation in the Arrow execution engine.



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