io.prestosql.operator.aggregation

Class RealAverageAggregation

java.lang.Object

io.prestosql.metadata.SqlAggregationFunction

io.prestosql.operator.aggregation.RealAverageAggregation

All Implemented Interfaces:

SqlFunction

public class RealAverageAggregation
extends SqlAggregationFunction

Field Summary

Fields

Modifier and Type	Field and Description
static RealAverageAggregation	REAL_AVERAGE_AGGREGATION

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	RealAverageAggregation()

Method Summary

Modifier and Type	Method and Description
static void	combine(LongState count, DoubleState sum, LongState otherCount, DoubleState otherSum)
String	getDescription()
static void	input(LongState count, DoubleState sum, long value)
static void	output(LongState count, DoubleState sum, BlockBuilder out)
InternalAggregationFunction	specialize(BoundVariables boundVariables, int arity, TypeManager typeManager, FunctionRegistry functionRegistry)

Methods inherited from class io.prestosql.metadata.SqlAggregationFunction

createFunctionByAnnotations, createFunctionsByAnnotations, getSignature, isDeterministic, isHidden

Methods inherited from class java.lang.Object

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

Field Detail

REAL_AVERAGE_AGGREGATION

public static final RealAverageAggregation REAL_AVERAGE_AGGREGATION

Constructor Detail

RealAverageAggregation

protected RealAverageAggregation()

Method Detail

getDescription

public String getDescription()

specialize

public InternalAggregationFunction specialize(BoundVariables boundVariables,
                                              int arity,
                                              TypeManager typeManager,
                                              FunctionRegistry functionRegistry)

Specified by:

specialize in class SqlAggregationFunction

input

public static void input(LongState count,
                         DoubleState sum,
                         long value)

combine

public static void combine(LongState count,
                           DoubleState sum,
                           LongState otherCount,
                           DoubleState otherSum)

output

public static void output(LongState count,
                          DoubleState sum,
                          BlockBuilder out)