CF.ADD

CF.ADD key item

Available in:

Redis Open Source / Bloom 1.0.0

Time complexity:

O(k + i), where k is the number of sub-filters and i is maxIterations

ACL categories:

@cuckoo, @write, @slow,

Compatibility:

Redis Enterprise and Redis Cloud compatibility

Adds an item to the cuckoo filter.

Cuckoo filters can contain the same item multiple times, and consider each addition as separate. Use CF.ADDNX to add an item only if it does not exist.

Required arguments

Complexity

O(n + i), where n is the number of sub-filters and i is maxIterations. Adding items requires up to 2 memory accesses per sub-filter. But as the filter fills up, both locations for an item might be full. The filter attempts to Cuckoo swap items up to maxIterations times.

Examples

redis> CF.ADD cf item1
(integer) 1
redis> CF.ADD cf item1
(integer) 1

Redis Enterprise and Redis Cloud compatibility

Return information