RENAME
Rename a key, overwriting the destination (write routed at the runtime Op level).
RENAME key newkeyComplexity
O(1) for a string value; O(M) for a collection of M elements (the entry's weight is re-derived by walking the value)
Complexity and compatibility are read out of kevy's implementation, not copied from Redis's reference. Several genuinely differ.
Redis compatibility
Differs
a cross-shard rename is a non-atomic Take then Put — there is a window in which neither key is visible; co-locate the two keys with a {hashtag} for the atomic path
See also
DELEXISTSEXPIREEXPIREATPERSISTPEXPIREPEXPIREATPTTLRENAMENXTTLTYPEUNLINK