Package io.druid.query.aggregation.hyperloglog

Class Summary

Class	Description
ByteBitLookup
HLLCV0	Deprecated
HLLCV1
HyperLogLogCollector	Implements the HyperLogLog cardinality estimator described in: http://algo.inria.fr/flajolet/Publications/FlFuGaMe07.pdf Run this code to see a simple indication of expected errors based on different m values: for (int i = 1; i < 20; ++i) { System.out.printf("i[%,d], val[%,d] => error[%f%%]%n", i, 2 << i, 104 / Math.sqrt(2 << i)); } This class is *not* multi-threaded.
HyperUniqueFinalizingPostAggregator
HyperUniquesAggregator
HyperUniquesAggregatorFactory
HyperUniquesBufferAggregator
HyperUniquesSerde