Both of these are essentially non-owning views into ArrayData. They were developed somewhat independently but share a pretty similar structure. I don't think we need both and we should unify on a common type for simplicity provided we can show no real performance difference.

Reporter: Weston Pace / @westonpace

Related issues:

• [C++][Compute] Add scalar_hash function (relates to)

_{Note: This issue was originally created as ARROW-17257. Please see the migration documentation for further details.}