apache / apache/arrow

[C++][Acero] Missing distinct, one and list scalar aggregate functions

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Component: C++ Type: bug
Dominant language
C++
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Description

### Describe the bug, including details regarding any error messages, version, and platform.

When I tried to do segmented grouping without any other keys I found out that there are no `non hash_` counterparts to `hash_list`, `hash_one` and `hash_distinct`. Error reported is:
`No function registered with name: distinct`

I think this is the root issue of https://github.com/apache/arrow/issues/36149
### Component(s)

C++

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