[ARROW-14174] [C++] Unify decimal and fixed-size binary implementations in kernels

• 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/29761
• Assignee: David Li
• Reporter: David Li
• Created: 29/Sep/21 18:08
• Updated: 11/Jan/23 08:38
• Resolved: 28/Oct/21 19:51

Description

ARROW-14027 incidentally adds helpers to manipulate decimal scalars as just bytes - we should take advantage of this to consolidate kernel implementations for functions like case_when, if_else, and coalesce that had different implementations since decimal scalars previously had a different layout.

Issue Links

• links to: GitHub Pull Request #11536