[ARROW-16377] ListVector#getBuffers returns buffers in the wrong order for usage of VectorLoader

• Type: Bug
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Component/s: Java
• External issue URL: https://github.com/apache/arrow/issues/31758
• Assignee: Unassigned
• Reporter: Paul Horn
• Created: 27/Apr/22 14:03
• Updated: 11/Jan/23 11:43

Description

Calling getBuffers on a ListVector adds the offsetBuffers first and the validityBuffer second. When a ListVector is populated by loadFieldBuffers (e.g. via a VectorLoader), the validityBuffer is read first and the offsetBuffer is read second. The resulting vector represents different data than the originating vector.