Is your feature request related to a problem or challenge?

I am currently in need of using datafusion SQL query engine (through delta-rs merge operation) to hash with a specific hashing algorithm.

https://xxhash.com/
https://github.com/Cyan4973/xxHash
Rust implementation : https://crates.io/crates/twox-hash

Describe the solution you'd like

I'd like the hashing functions xxhash32 and xxhash64 to be part of datafusion expression API so the functions can be used in SQL context for hashing data.