Package io.trino.operator.aggregation.minmaxby

Class AbstractMinMaxByNAggregationFunction

java.lang.Object

io.trino.metadata.SqlAggregationFunction

io.trino.operator.aggregation.minmaxby.AbstractMinMaxByNAggregationFunction

All Implemented Interfaces:

SqlFunction

Direct Known Subclasses:

MaxByNAggregationFunction, MinByNAggregationFunction

public abstract class AbstractMinMaxByNAggregationFunction
extends SqlAggregationFunction

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractMinMaxByNAggregationFunction(String name, boolean min, String description)

Method Summary

Modifier and Type	Method	Description
static void	combine(MinMaxByNState state, MinMaxByNState otherState)
protected AggregationMetadata	generateAggregation(MethodHandle keyComparisonMethod, Type valueType, Type keyType)
FunctionDependencyDeclaration	getFunctionDependencies(BoundSignature boundSignature)
static void	input(MethodHandle keyComparisonMethod, Type valueType, Type keyType, MinMaxByNState state, Block value, Block key, int blockIndex, long n)
static void	output(ArrayType outputType, MinMaxByNState state, BlockBuilder out)
AggregationMetadata	specialize(BoundSignature boundSignature, FunctionDependencies functionDependencies)

Methods inherited from class io.trino.metadata.SqlAggregationFunction

createFunctionsByAnnotations, getAggregationMetadata, getFunctionMetadata, specialize

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.trino.metadata.SqlFunction

getFunctionDependencies

Constructor Detail

AbstractMinMaxByNAggregationFunction

protected AbstractMinMaxByNAggregationFunction(String name,
                                               boolean min,
                                               String description)

Method Detail

getFunctionDependencies

public FunctionDependencyDeclaration getFunctionDependencies(BoundSignature boundSignature)

specialize

public AggregationMetadata specialize(BoundSignature boundSignature,
                                      FunctionDependencies functionDependencies)

Overrides:

specialize in class SqlAggregationFunction

input

public static void input(MethodHandle keyComparisonMethod,
                         Type valueType,
                         Type keyType,
                         MinMaxByNState state,
                         Block value,
                         Block key,
                         int blockIndex,
                         long n)

combine

public static void combine(MinMaxByNState state,
                           MinMaxByNState otherState)

output

public static void output(ArrayType outputType,
                          MinMaxByNState state,
                          BlockBuilder out)

generateAggregation

protected AggregationMetadata generateAggregation(MethodHandle keyComparisonMethod,
                                                  Type valueType,
                                                  Type keyType)