Redis Set SINTERSTORE Command
The Redis SINTERSTORE command stores the intersection of the specified sets in a given destination set. If the destination set already exists, it will be overwritten.
Syntax
The basic syntax of the SINTERSTORE command is as follows:
1 | SINTERSTORE destination key [key ...] |
This command is equal to SINTER, but instead of returning the resulting set, it is stored in destination.
If destination already exists, it is overwritten.
Available Since
Redis version >= 1.0.0
Time Complexity
O(N*M) worst case where N is the cardinality of the smallest set and M is the number of sets.
ACL Categories
@write, @set, @slow
Return Value
Returns the number of elements in the set that stores the intersection.
Example
1 | 127.0.0.1:6379> SADD key1 a b c d |
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