ContributorsLast modified on: Mar 24, 2016

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

@return

@integer-reply, specifically:

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

@examples

SET mykey "Hello"
SET myotherkey "World"
RENAMENX mykey myotherkey
GET myotherkey