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vsphere-influxdb-go/vendor/github.com/influxdata/influxdb/pkg/estimator/sketch.go
2017-10-25 20:52:40 +00:00

19 lines
399 B
Go

package estimator
import "encoding"
// Sketch is the interface representing a sketch for estimating cardinality.
type Sketch interface {
// Add adds a single value to the sketch.
Add(v []byte)
// Count returns a cardinality estimate for the sketch.
Count() uint64
// Merge merges another sketch into this one.
Merge(s Sketch) error
encoding.BinaryMarshaler
encoding.BinaryUnmarshaler
}