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