RENAMENX key newkey

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.

@return

@integer-reply, specifically:

• 1 if key was renamed to newkey.
• 0 if newkey already exists.

@examples

redis> SET mykey "Hello"
TBD
redis> SET myotherkey "World"
TBD
redis> RENAMENX mykey myotherkey
TBD
redis> GET myotherkey

History

• Starting with Redis version 3.2.0: The command no longer returns an error when source and destination names are the same.