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https://issues.apache.org/jira/browse/ARROW-16485?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17614185#comment-17614185
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Apache Arrow JIRA Bot commented on ARROW-16485:
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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++] Improving Substrait-Join Integration
> ------------------------------------------
>
> Key: ARROW-16485
> URL: https://issues.apache.org/jira/browse/ARROW-16485
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Reporter: Vibhatha Lakmal Abeykoon
> Assignee: Vibhatha Lakmal Abeykoon
> Priority: Major
>
> This is an extension to the ARROW-15590. The main focus is to address the
> following issues.
> 1. Support set of equality expressions as the join expression
> 2. Output handling (user provides the left and right outputs)
> 3. Support other (except INNER) join types: This requires mapping of existing
> Substrait Join definitions to Arrow supported Join types
> 4. Filter support: This requires mapping Substrait `post_join_filter` to
> `filter` in `HashJoinNodeOptions`
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