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.
This command copies the value stored at the
source key to the
By default, the
destination key is created in the logical database used by 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.
Integer reply, specifically:
sourcewas not copied.
SET dolly "sheep" COPY dolly clone GET clone