Redis Set SUNION Command
The Redis SUNION command returns the union of the specified sets. Keys that do not exist are considered to be empty sets.
Syntax
The basic syntax of the SUNION command is as follows:
1 | SUNION key [key ...] |
For example:
1 | key1 = {a,b,c,d} |
Available Since
Redis version >= 1.0.0
Time Complexity
O(N) where N is the total number of elements in all given sets.
ACL Categories
@read, @set, @slow
Return Value
Returns the members of the set resulting from the union of all the given sets.
Example
1 | 127.0.0.1:6379> SADD key1 a b c d |
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