Available since: 1.0.0
Time complexity: O(1)
ACL categories:
@keyspace
@write
@fast
Renames key
to newkey
if newkey
does not yet exist.
It returns an error when key
does not exist.
In Cluster mode, both key
and newkey
must be in the same hash slot, meaning that in practice only keys that have the same hash tag can be reliably renamed in cluster.
Integer reply, specifically:
1
if key
was renamed to newkey
.0
if newkey
already exists.