org.apache.drill.exec.planner.common

Class HistogramUtils

java.lang.Object

org.apache.drill.exec.planner.common.HistogramUtils

public class HistogramUtils
extends Object

Constructor Summary

Constructors

Constructor and Description
HistogramUtils()

Method Summary

Modifier and Type	Method and Description
static Histogram	buildHistogramFromTDigest(byte[] tdigest_bytearray, TypeProtos.MajorType type, int numBuckets, long nonNullCount) Build a histogram using the t-digest byte array.

Methods inherited from class java.lang.Object

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

Constructor Detail

HistogramUtils

public HistogramUtils()

Method Detail

buildHistogramFromTDigest

public static Histogram buildHistogramFromTDigest(byte[] tdigest_bytearray,
                                                  TypeProtos.MajorType type,
                                                  int numBuckets,
                                                  long nonNullCount)

Build a histogram using the t-digest byte array. The type of histogram is dependent on the data type of the column.