Function hash

datafusion/expr/src/async_udf.rs:215–219

(value: &T)

    }

    fn hash<T: Hash>(value: &T) -> u64 {
        let hasher = &mut DefaultHasher::new();
        value.hash(hasher);
        hasher.finish()
    }

    #[test]
    fn test_async_udf_partial_eq_and_hash() {