| Interface | Description |
|---|---|
| Cardinality |
An aggregation that computes approximate numbers of unique terms.
|
| Class | Description |
|---|---|
| CardinalityAggregationBuilder | |
| CardinalityAggregator |
An aggregator that computes approximate counts of unique values.
|
| CardinalityAggregatorFactory | |
| HyperLogLogPlusPlus |
Hyperloglog++ counter, implemented based on pseudo code from
http://static.googleusercontent.com/media/research.google.com/fr//pubs/archive/40671.pdf
and its appendix
https://docs.google.com/document/d/1gyjfMHy43U9OWBXxfaeG-3MjGzejW1dlpyMwEYAAWEI/view?fullscreen
This implementation is different from the original implementation in that it
uses a hash table instead of a sorted list for linear counting.
|
| InternalCardinality | |
| ParsedCardinality |