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https://issues.apache.org/jira/browse/ARROW-16496?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17606327#comment-17606327
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Todd Farmer commented on ARROW-16496:
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This issue was last updated over 90 days ago, which may be an indication it is
no longer being actively worked. To better reflect the current state, the issue
is being unassigned per [project
policy|https://arrow.apache.org/docs/dev/developers/bug_reports.html#issue-assignment].
Please feel free to re-take assignment of the issue if it is being actively
worked, or if you plan to start that work soon.
> [C++] Add roundtrip support to plans + relations
> ------------------------------------------------
>
> Key: ARROW-16496
> URL: https://issues.apache.org/jira/browse/ARROW-16496
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Reporter: Weston Pace
> Assignee: Vibhatha Lakmal Abeykoon
> Priority: Major
> Labels: substrait
>
> Currently we have a significant amount effort put into round tripping
> expressions and types but we don't yet have support for relations and plans.
> Doing so would make it possible to do things like save off Arrow exec plans
> created by non-substrait means (for example, to save off a plan created by
> pyarrow or R's current non-substrait dplyr implementation).
> It would also help with testing as it would enable more round-trip testing.
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