| Package | Description |
|---|---|
| org.apache.datasketches.hll |
The DataSketches™ HLL sketch family package
HllSketch and Union
are the public facing classes of this high performance implementation of Phillipe Flajolet's
HyperLogLog algorithm[1] but with significantly improved error behavior and important features that can be
essential for large production systems that must handle massive data. |
| Class and Description |
|---|
| HllSketch
The HllSketch is actually a collection of compact implementations of Phillipe Flajolet’s HyperLogLog (HLL)
sketch but with significantly improved error behavior and excellent speed performance.
|
| TgtHllType
Specifies the target type of HLL sketch to be created.
|
| Union
This performs union operations for all HllSketches.
|
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