SUNION key [key …]
相关命令
- SADD
- SCARD
- SDIFF
- SDIFFSTORE
- SINTER
- SINTERSTORE
- SISMEMBER
- SMEMBERS
- SMOVE
- SPOP
- SRANDMEMBER
- SREM
- SSCAN
- SUNION
- SUNIONSTORE
始于1.0.0可用。
时间复杂度: O(N) where N is the total number of elements in all given sets.
Returns the members of the set resulting from the union of all the given sets.
For example:
key1 = {a,b,c,d}
key2 = {c}
key3 = {a,c,e}
SUNION key1 key2 key3 = {a,b,c,d,e}
Keys that do not exist are considered to be empty sets.
返回值
Array reply: list with members of the resulting set.
例子
redis> SADD key1 "a"
- (integer) 1
redis> SADD key1 "b"
- (integer) 1
redis> SADD key1 "c"
- (integer) 1
redis> SADD key2 "c"
- (integer) 1
redis> SADD key2 "d"
- (integer) 1
redis> SADD key2 "e"
- (integer) 1
redis> SUNION key1 key2
- 1) "a"
- 2) "c"
- 3) "b"
- 4) "d"
- 5) "e"
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