RENAMENX key newkey

Available since 1.0.0.

Time complexity: O(1)

Renames key to newkey if newkey does not yet exist. It returns an error under the same conditions as RENAME.

*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> 
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