org.apache.datasketches.hive.quantiles

Class GetNFromStringsSketchUDF

java.lang.Object

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

org.apache.datasketches.hive.quantiles.GetNFromStringsSketchUDF

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

Constructor Summary

Constructors

Constructor and Description
GetNFromStringsSketchUDF()

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

GetNFromStringsSketchUDF

public GetNFromStringsSketchUDF()

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