[ARROW-17141] [C++] Enable selecting nested fields in StructArray with field path

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Not A Problem
• Component/s: C++
• Labels: kernel
• External issue URL: https://github.com/apache/arrow/issues/32442

Language

C++

• Assignee: Unassigned
• Reporter: Rok Mihevc
• Created: 20/Jul/22 09:00
• Updated: 11/Jan/23 11:48
• Resolved: 20/Jul/22 16:47

Description

Currently selecting a nested field in a StructArray requires multiple selects or flattening of schema. It would be more user friendly to provide a field path e.g.: field_in_top_struct.field_in_substruct.

Issue Links

• relates to: ARROW-17989 [C++] Enable struct_field kernel to accept string field names