SUNION
Syntax
SUNION key [key ...]
- Available since:
- 1.0.0
- Time complexity:
- O(N) where N is the total number of elements in all given sets.
- ACL categories:
-
@read,@set,@slow,
返回所有给定集合的并集所得到的集合的成员。
例如：
key1 = {a,b,c,d}
key2 = {c}
key3 = {a,c,e}
SUNION key1 key2 key3 = {a,b,c,d,e}
不存在的键被视为空集合。