[ARROW-11424] [C++] Add more StructType and StructArray methods

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 7.0.0
• Component/s: C++
• Labels: good-first-issue pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/27311
• Assignee: Pradeep Garigipati
• Reporter: Neal Richardson
• Created: 28/Jan/21 23:37
• Updated: 11/Jan/23 08:19
• Resolved: 14/Dec/21 13:16

Description

A StructType is basically a Schema (vector of Fields), right? Likewise, a StructArray is pretty much the same as a RecordBatch, right? Schema and RecordBatch have many more methods than StructType/StructArray, but we should be able to do the same kinds of things to structs.

Also, an observation while working on ARROW-11423: the method to extract an Array column from a StructArray is called field()} and {{GetFieldByName(), which is confusing since Schema/StructType is what contains Field objects, and StructArray::field() returns Array, not Field.

cc bkietz apitrou

Issue Links

• links to: GitHub Pull Request #11877