[
https://issues.apache.org/jira/browse/ARROW-17520?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Vibhatha Lakmal Abeykoon reassigned ARROW-17520:
------------------------------------------------
Assignee: Vibhatha Lakmal Abeykoon
> [C++] Implement SubStrait SetRel (UnionAll)
> -------------------------------------------
>
> Key: ARROW-17520
> URL: https://issues.apache.org/jira/browse/ARROW-17520
> Project: Apache Arrow
> Issue Type: New Feature
> Reporter: Donghe Kang
> Assignee: Vibhatha Lakmal Abeykoon
> Priority: Major
>
> The SetRel operator in Substrait is a critical operator to merge data from
> several branches in the query plan. The operator has a few options like
> MINUS, INTERSECTION and UNION. The UNIONALL option that directly merges data
> flows is the foundation of other options and is easier to implement. As I
> know, Acero already has the union operator and we could easily map the
> UNIONALL in Substrait to the Union operator in Acero.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
