[jira] [Commented] (ARROW-4975) [C++] Support concatenation of UnionArrays

[Rok Mihevc (Jira)]

[ 
https://issues.apache.org/jira/browse/ARROW-4975?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17661997#comment-17661997
 ] 

Rok Mihevc commented on ARROW-4975:
---

This issue has been migrated to [issue 
#16035|https://github.com/apache/arrow/issues/16035] on GitHub. Please see the 
[migration documentation|https://github.com/apache/arrow/issues/14542] for 
further details.

> [C++] Support concatenation of UnionArrays
> --
>
> Key: ARROW-4975
> URL: https://issues.apache.org/jira/browse/ARROW-4975
> Project: Apache Arrow
>  Issue Type: New Feature
>  Components: C++
>Reporter: Ben Kietzman
>Assignee: Matthijs Brobbel
>Priority: Minor
>  Labels: good-first-issue, good-second-issue, 
> pull-request-available
> Fix For: 7.0.0
>
>  Time Spent: 1h 50m
>  Remaining Estimate: 0h
>
> https://github.com/apache/arrow/pull/3746 adds support for concatenation of 
> arrays, but UnionArrays are not supported.



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[jira] [Commented] (ARROW-4975) [C++] Support concatenation of UnionArrays

[Antoine Pitrou (Jira)]

[ 
https://issues.apache.org/jira/browse/ARROW-4975?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17448225#comment-17448225
 ] 

Antoine Pitrou commented on ARROW-4975:
---

This should be almost trivial for sparse unions and would require a bit more 
care for dense unions.

> [C++] Support concatenation of UnionArrays
> --
>
> Key: ARROW-4975
> URL: https://issues.apache.org/jira/browse/ARROW-4975
> Project: Apache Arrow
>  Issue Type: New Feature
>  Components: C++
>Reporter: Ben Kietzman
>Priority: Minor
>  Labels: good-first-issue, good-second-issue
> Fix For: 7.0.0
>
>
> https://github.com/apache/arrow/pull/3746 adds support for concatenation of 
> arrays, but UnionArrays are not supported.



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