Redis – Sorted Sets Redis Sorted Sets are similar to Redis Sets with the unique feature of values stored in a set. The difference is, every member of a Sorted Set is associated with a score, that is used in order to take the sorted set ordered, from the smallest to the greatest score. In […]
Category Archives: redis
Redis – Sets Redis Sets are an unordered collection of unique strings. Unique means sets does not allow repetition of data in a key. In Redis set add, remove, and test for the existence of members in O(1) (constant time regardless of the number of elements contained inside the Set). The maximum length of a […]
Redis – HyperLogLog Redis HyperLogLog is an algorithm that uses randomization in order to provide an approximation of the number of unique elements in a set using just a constant, and small amount of memory. HyperLogLog provides a very good approximation of the cardinality of a set even using a very small amount of memory […]