westonpace commented on PR #12590:
URL: https://github.com/apache/arrow/pull/12590#issuecomment-1109529315
> @westonpace I have a few questions regarding this.
>
> Here, eventhough we are not exposing whether the value is a scalar or an
array, but we must say what is the data type of the input. Or should we relax
this too?
@vibhatha
I think we should relax this. We can completely hide the "input type"
concept from the user and just take a data type. So it becomes...
```
pc.register_scalar_function(some_function,
func_name,
function_doc,
{
"left": pa.int64(),
"right": pa.int64()
},
pa.int64())
```
If we later decide to add the input type concept back in that will be fine.
`pa.int64()` will mean `ANY` and `pc.InputType.array(pa.int64())` will be
`ARRAY` only.
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