This command works exactly like {@link #sunion(string...) SUNION} but instead of being returned
the resulting set is stored as dstkey. Any existing value in dstkey will be over-written.
<p>
Time complexity O(N) where N is the total number of elements in all the provided sets
@param dstkey
@param keys
@return Status code reply
This command works exactly like {@link #sunion(string...) SUNION} but instead of being returned the resulting set is stored as dstkey. Any existing value in dstkey will be over-written. <p> Time complexity O(N) where N is the total number of elements in all the provided sets @param dstkey @param keys @return Status code reply