org.apache.datasketches.hive.quantiles

Class GetNFromDoublesSketchUDF

java.lang.Object

org.apache.hadoop.hive.ql.exec.UDF

org.apache.datasketches.hive.quantiles.GetNFromDoublesSketchUDF

public class GetNFromDoublesSketchUDF
extends org.apache.hadoop.hive.ql.exec.UDF

Constructor Summary

Constructors

Constructor and Description
GetNFromDoublesSketchUDF()

Method Summary

Modifier and Type	Method and Description
Long	evaluate(org.apache.hadoop.io.BytesWritable serializedSketch) Returns N from a given sketch

Methods inherited from class org.apache.hadoop.hive.ql.exec.UDF

getRequiredFiles, getRequiredJars, getResolver, setResolver

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

GetNFromDoublesSketchUDF

public GetNFromDoublesSketchUDF()

Method Detail

evaluate

public Long evaluate(org.apache.hadoop.io.BytesWritable serializedSketch)

Returns N from a given sketch

Parameters:

serializedSketch - serialized sketch

Returns:

stream length