- Usage:
-
ZREVRANK key member [ WITHSCORE ]
- Complexity:
- O(log(N))
- Since:
- 2.0.0
-
Nil reply: if the key does not exist or the member does not exist in the sorted set.
-
Integer reply: The rank of the member when WITHSCORE is not used.
-
Array reply: The rank and score of the member when WITHSCORE is used.
-
Null reply: if the key does not exist or the member does not exist in the sorted set.
-
Integer reply: The rank of the member when WITHSCORE is not used.
-
Array reply: The rank and score of the member when WITHSCORE is used.
Returns the rank of member in the sorted set stored at key, with the scores
ordered from high to low.
The rank (or index) is 0-based, which means that the member with the highest
score has rank 0.
The optional WITHSCORE argument supplements the command's reply with the score of the element returned.
Use ZRANK to get the rank of an element with the scores ordered from low to
high.
Examples
127.0.0.1:6379> ZADD myzset 1 "one"
(integer) 1
127.0.0.1:6379> ZADD myzset 2 "two"
(integer) 1
127.0.0.1:6379> ZADD myzset 3 "three"
(integer) 1
127.0.0.1:6379> ZREVRANK myzset "one"
(integer) 2
127.0.0.1:6379> ZREVRANK myzset "four"
(nil)
127.0.0.1:6379> ZREVRANK myzset "three" WITHSCORE
1) (integer) 0
2) "3"
127.0.0.1:6379> ZREVRANK myzset "four" WITHSCORE
(nil)
RESP2 Reply
One of the following:
RESP3 Reply
One of the following:
History
| Version | Change |
|---|---|
| 7.2.0 | Added the optional |