[ARROW-13222] [C++] Support variable-width types in case_when function

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 6.0.0
• Component/s: C++
• Labels: kernel pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/28909
• Assignee: David Li
• Reporter: David Li
• Created: 30/Jun/21 15:23
• Updated: 11/Jan/23 08:31
• Resolved: 23/Aug/21 16:11

Description

The initial PR only adds support for fixed-width types. We should also support strings, lists, etc.

Issue Links

• is a child of: ARROW-8894 [C++] C++ array kernels framework and execution buildout (umbrella issue)
• is related to: ARROW-13701 [C++] Regression introduced in PR 10806 (ARROW-13222: [C++] Improve type support for case_when)
• is related to: ARROW-14105 [C++] Reconcile type promotion rules between if_else, case_when, coalesce, select
• is related to: ARROW-13573 [C++] Support dictionaries directly in case_when kernel
• links to: GitHub Pull Request #10806