Package io.trino.cost

Class SymbolStatsEstimate

java.lang.Object

io.trino.cost.SymbolStatsEstimate

public class SymbolStatsEstimate
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	SymbolStatsEstimate.Builder

Constructor Summary

Constructors

Constructor	Description
SymbolStatsEstimate(double lowValue, double highValue, double nullsFraction, double averageRowSize, double distinctValuesCount)

Method Summary

Modifier and Type	Method	Description
static SymbolStatsEstimate.Builder	builder()
static SymbolStatsEstimate.Builder	buildFrom(SymbolStatsEstimate other)
boolean	equals(Object o)
double	getAverageRowSize()
double	getDistinctValuesCount()
double	getHighValue()
double	getLowValue()
double	getNullsFraction()
double	getValuesFraction()
int	hashCode()
boolean	isSingleValue()
boolean	isUnknown()
SymbolStatsEstimate	mapDistinctValuesCount(Function<Double,Double> mappingFunction)
SymbolStatsEstimate	mapNullsFraction(Function<Double,Double> mappingFunction)
StatisticRange	statisticRange()
String	toString()
static SymbolStatsEstimate	unknown()
static SymbolStatsEstimate	zero()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

SymbolStatsEstimate

public SymbolStatsEstimate(double lowValue,
 double highValue,
 double nullsFraction,
 double averageRowSize,
 double distinctValuesCount)

Method Details

unknown

public static SymbolStatsEstimate unknown()

zero

public static SymbolStatsEstimate zero()

getLowValue

public double getLowValue()

getHighValue

public double getHighValue()

getNullsFraction

public double getNullsFraction()

statisticRange

public StatisticRange statisticRange()

getValuesFraction

public double getValuesFraction()

getAverageRowSize

public double getAverageRowSize()

getDistinctValuesCount

public double getDistinctValuesCount()

mapNullsFraction

public SymbolStatsEstimate mapNullsFraction(Function<Double,Double> mappingFunction)

mapDistinctValuesCount

public SymbolStatsEstimate mapDistinctValuesCount(Function<Double,Double> mappingFunction)

isUnknown

public boolean isUnknown()

isSingleValue

public boolean isSingleValue()

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object

builder

public static SymbolStatsEstimate.Builder builder()

buildFrom

public static SymbolStatsEstimate.Builder buildFrom(SymbolStatsEstimate other)