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ZREVRANGEBYLEX

Syntax​

ZREVRANGEBYLEX key max min [LIMIT offset count]

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)).

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

Apart from the reversed ordering, ZREVRANGEBYLEX is similar to ZRANGEBYLEX.

Return​

Array reply: list of elements in the specified score range.

Examples​

dragonfly> ZADD myzset 0 a 0 b 0 c 0 d 0 e 0 f 0 g
(integer) 7
dragonfly> ZREVRANGEBYLEX myzset [c -
1) "c"
2) "b"
3) "a"
dragonfly> ZREVRANGEBYLEX myzset (c -
1) "b"
2) "a"
dragonfly> ZREVRANGEBYLEX myzset (g [aaa
1) "f"
2) "e"
3) "d"
4) "c"
5) "b"