[ARROW-14615] [C++] Support nested field refs into unions

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 7.0.0
• Component/s: C++
• Labels: kernel pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/30161
• Assignee: David Li
• Reporter: David Li
• Created: 05/Nov/21 20:05
• Updated: 11/Jan/23 08:41
• Resolved: 10/Nov/21 13:27

Description

Also move the implementation into a kernel so it can be more easily used. Follow-up to ARROW-13987.

Issue Links

• is related to: ARROW-13987 [C++] Support nested FieldRefs
• links to: GitHub Pull Request #11641