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Posted to issues@arrow.apache.org by "Weston Pace (Jira)" <ji...@apache.org> on 2022/02/05 01:19:00 UTC

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

Weston Pace created ARROW-15584:
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             Summary: [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


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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