public ExistenceStatCollector(string memberName, Configuration configuration, out bool cancel)
{
MemberName = memberName;
_byteConverter = ByteConverterHelpers.GetByteConverter <T>();
_murmurHash = MurmurHash.Create128(managed: true, preference: AlgorithmPreference.X64);
cancel = false;
}
public DistinctStatCollector(string memberName, Configuration configuration, out bool cancel)
{
MemberName = memberName;
/*if (typeof(T) == typeof(string) ||
* typeof(T) == typeof(int) ||
* typeof(T) == typeof(uint) ||
* typeof(T) == typeof(long) ||
* typeof(T) == typeof(ulong) ||
* typeof(T) == typeof(float) ||
* typeof(T) == typeof(double) ||
* typeof(T) == typeof(byte[]))
* {
* _estimator = (ICardinalityEstimator<T>)new CardinalityEstimator();
* }
* else*/
{
_byteConverter = ByteConverterHelpers.GetByteConverter <T>();
//_estimator = new CardinalityEstimator(14, CardinalityEstimation.Hash.HashFunctionId.Fnv1A);
_estimator = new CardinalityEstimator(14, CardinalityEstimation.Hash.HashFunctionId.Murmur3);
}
cancel = false;
}
