[ARROW-14179] [C++] Import/Export of UnionArray in C data interface has wrong buffer count

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Fix Version/s: 6.0.0
• Component/s: C++
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/29765
• Assignee: Antoine Pitrou
• Reporter: Roee Shlomo
• Created: 29/Sep/21 20:38
• Updated: 11/Jan/23 08:38
• Resolved: 04/Oct/21 09:47

Description

The C Data Interface implementation for UnionArray includes a validity buffer as the first buffer. However, union arrays should have no validity buffer according to the specification (Arrow Columnar Format — Apache Arrow v5.0.0)

 

Issue Links

• links to: GitHub Pull Request #11280