Use ScalarValue for single input on math expression #5890
Description
Is your feature request related to a problem or challenge?
As a follow up of #5807, we can use ScalarValue for input on math expression like round when it has only one input array. So we don't need to initiate a long array for just same value.
Describe the solution you'd like
No response
Describe alternatives you've considered
No response
Additional context
No response