Optimize spark sha2 #20046
Description
Is your feature request related to a problem or challenge?
comet reference:
Opportunities for refactoring:
- currently sha2 expands scalars to arrays; introduce scalar fast path code to avoid this unnecessary cost
- sha2 code still uses hex encode method reliant on
write!(); look into replacing with faster encode, see perf: Improve performance of hex encoding in spark functions #19586
Describe the solution you'd like
No response
Describe alternatives you've considered
No response
Additional context
No response