ZLEXCOUNT key min max

Time complexity: O(log(N)) with N being the number of elements in the sorted set.

When all the elements in a sorted set are inserted with the same score, in order to force lexicographical ordering, this command returns the number of elements in the sorted set at with a value between and .

Note: the command has a complexity of just O(log(N)) because it uses elements ranks (see ) to get an idea of the range. Because of this there is no need to do a work proportional to the size of the range.

Integer reply: the number of elements in the specified score range.

*Examples

redis> ZADD myzset 0 f 0 g

redis> ZLEXCOUNT myzset - +