[ARROW-12739] [C++] Function to combine Arrays row-wise into ListArray

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: C++
• Labels: kernel query-engine
• External issue URL: https://github.com/apache/arrow/issues/28481
• Assignee: Jin Shang
• Reporter: Ian Cook
• Created: 11/May/21 16:42
• Updated: 11/Jan/23 08:28

Description

Add a variadic function that would take 2+ Arrays and combine/transpose them rowwise into a ListArray. For example:
Input:

Array<string>        Array<string>
[                    [
  "foo",               "bar",
  "push"               "pop"
]                    ]
 

Output:

ListArray<list<item: string>>
[
  ["foo","bar"],
  ["push","pop"]
]

This is similar to the StructArray constructor which takes a list of Arrays and names (but in this case it would only need to take a list of Arrays).