ZREVRANGEBYSCORE

ZREVRANGEBYSCORE key max min [WITHSCORES] [LIMIT offset count]

Available since 2.2.0.

Time complexity: O(log(N)+M) with N being the number of elements in the sorted set and M the number of elements being returned. If M is constant (e.g. always asking for the first 10 elements with LIMIT), you can consider it O(log(N)).

Returns all the elements in the sorted set at key with a score between max and min (including elements with score equal to max or min). In contrary to the default ordering of sorted sets, for this command the elements are considered to be ordered from high to low scores.

The elements having the same score are returned in reverse lexicographical order.

Apart from the reversed ordering, ZREVRANGEBYSCORE is similar to ZRANGEBYSCORE.

As per Redis 6.2.0, this command is considered deprecated. Please prefer using the ZRANGE command with the BYSCORE and REV arguments in new code.

Return value

Array reply: list of elements in the specified score range (optionally with their scores).

Examples

redis> ZADD myzset 1 "one" (integer) 1 redis> ZADD myzset 2 "two" (integer) 1 redis> ZADD myzset 3 "three" (integer) 1 redis> ZREVRANGEBYSCORE myzset +inf -inf

1) "three"
2) "two"
3) "one"

redis> ZREVRANGEBYSCORE myzset 2 1

1) "two"
2) "one"

redis> ZREVRANGEBYSCORE myzset 2 (1 1) "two" redis> ZREVRANGEBYSCORE myzset (2 (1 (empty list or set)

© 2009–2020 Salvatore Sanfilippo
Licensed under the Creative Commons Attribution-ShareAlike License 4.0.
https://redis.io/commands/zrevrangebyscore