[ARROW-9304] [C++] Add "AppendEmptyValue" builder APIs for use inside StructBuilder::AppendNull

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.0.0
• Component/s: C++
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/25393
• Assignee: Ji Liu
• Reporter: Wes McKinney
• Created: 03/Jul/20 00:00
• Updated: 11/Jan/23 08:05
• Resolved: 22/Oct/20 15:17

Description

StructBuilder should probably also add "UnsafeAppendNull" so that there is the option of using the Unsafe* operations on the children

Issue Links

• links to: GitHub Pull Request #7887