pub fn next_key(key: &[u8]) -> Vec<u8> ⓘExpand description
Computes the next key of the given key.
If the key has no successor key (e.g. the input is “\xff\xff”), the result would be an empty vector.
§Examples
use risingwave_hummock_sdk::key::next_key;
assert_eq!(next_key(b"123"), b"124");
assert_eq!(next_key(b"12\xff"), b"13");
assert_eq!(next_key(b"\xff\xff"), b"");
assert_eq!(next_key(b"\xff\xfe"), b"\xff\xff");
assert_eq!(next_key(b"T"), b"U");
assert_eq!(next_key(b""), b"");