127.0.0.1:11222> zadd ztmp 10 x 20 y 30 z
(integer) 3
127.0.0.1:11222> zadd ztmp gt xx ch 5 foo 11 x 21 y 29 z
(integer) 3
127.0.0.1:11222> get ztmp
(error) ERRWRONGTYPE Operation against a key holding the wrong kind of value
127.0.0.1:11222> zscan ztmp 0
1) "0"
2) 1) "x"
   2) "11.0"
   3) "y"
   4) "21.0"
   5) "z"
   6) "29.0"