- Usage:
-
SUNIONSTORE destination key [ key ... ]
- Complexity:
- O(N) where N is the total number of elements in all given sets.
- Since:
- 1.0.0
This command is equal to SUNION, but instead of returning the resulting set,
it is stored in destination.
If destination already exists, it is overwritten.
Examples
127.0.0.1:6379> SADD key1 "a"
(integer) 1
127.0.0.1:6379> SADD key1 "b"
(integer) 1
127.0.0.1:6379> SADD key1 "c"
(integer) 1
127.0.0.1:6379> SADD key2 "c"
(integer) 1
127.0.0.1:6379> SADD key2 "d"
(integer) 1
127.0.0.1:6379> SADD key2 "e"
(integer) 1
127.0.0.1:6379> SUNIONSTORE key key1 key2
(integer) 5
127.0.0.1:6379> SMEMBERS key
1) "a"
2) "b"
3) "c"
4) "d"
5) "e"