[ARROW-3767] [C++] Add cast for Null to any type

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.14.0
• Component/s: C++
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/20094
• Assignee: Antoine Pitrou
• Reporter: Uwe Korn
• Created: 12/Nov/18 14:31
• Updated: 11/Jan/23 07:29
• Resolved: 03/May/19 22:55

Description

Casting a column from NullType to any other type is possible as the resulting array will also be all-null but simply with a different type annotation.

Issue Links

• supercedes: ARROW-4119 [C++] Clean up cast implementation from null to other types
• links to: GitHub Pull Request #4196