COPY source destination [DB destination-db] [REPLACE]
Available since: 6.2.0
Time complexity: O(N) worst case for collections, where N is the number of nested items. O(1) for string values.
ACL categories:
@keyspace
@write
@slow
This command copies the value stored at the source key to the destination
key.
By default, the destination key is created in the logical database used by the
connection. The DB option allows specifying an alternative logical database
index for the destination key.
The command returns an error when the destination key already exists. The
REPLACE option removes the destination key before copying the value to it.
@return
@integer-reply, specifically:
1ifsourcewas copied.0ifsourcewas not copied.
@examples
SET dolly "sheep"
COPY dolly clone
GET clone