hll

Documentation

Overview

+build cgo

Index

• Constants
• type Hll
  • func New(log2m int, regwidth int, expthresh int64, sparseon int) (*Hll, error)
  • func NewDefault() (*Hll, error)
  • func (hll *Hll) Add(value string)
  • func (hll *Hll) Add4Bytes(value []byte) error
  • func (hll *Hll) Add8Bytes(value []byte) error
  • func (hll *Hll) AddInt32(value int32)
  • func (hll *Hll) AddInt64(value int64)
  • func (hll *Hll) Delete()
  • func (hll *Hll) GetCardinality() float64
  • func (hll *Hll) Print() string
  • func (hll *Hll) Serialize() []byte
  • func (hll *Hll) Union(hllRhs *Hll)
• type HllError
  • func (err HllError) Error() string

Constants

const (
	DEFAULT_LOG2M     = 11
	DEFAULT_REGWIDTH  = 5
	DEFAULT_EXPTHRESH = -1
	DEFAULT_SPARSEON  = 1
)

Types

type Hll

type Hll struct {
	// contains filtered or unexported fields
}

Hll is the basic type for the Hll library. Holds an unexported instance of the database, for interactions.

func New

func New(log2m int, regwidth int, expthresh int64, sparseon int) (*Hll, error)

func NewDefault

func NewDefault() (*Hll, error)

func (*Hll) Add

func (hll *Hll) Add(value string)

func (*Hll) Add4Bytes

func (hll *Hll) Add4Bytes(value []byte) error

func (*Hll) Add8Bytes

func (hll *Hll) Add8Bytes(value []byte) error

func (*Hll) AddInt32

func (hll *Hll) AddInt32(value int32)

func (*Hll) AddInt64

func (hll *Hll) AddInt64(value int64)

func (*Hll) Delete

func (hll *Hll) Delete()

func (*Hll) GetCardinality

func (hll *Hll) GetCardinality() float64

func (*Hll) Print

func (hll *Hll) Print() string

func (*Hll) Serialize

func (hll *Hll) Serialize() []byte

func (*Hll) Union

func (hll *Hll) Union(hllRhs *Hll)

type HllError

type HllError string

HllError is used for errors using the hll library. It implements the builtin error interface.

func (HllError) Error

func (err HllError) Error() string