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 value

Integer reply, specifically:

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

*Examples

redis>  SET mykey "Hello"
"OK"
redis>  SET myotherkey "World"
"OK"
redis>  RENAMENX mykey myotherkey
(integer) 0
redis>  GET myotherkey
"World"
redis> 

*History

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