Package io.trino.operator.aggregation.histogram

Class Histogram

java.lang.Object

io.trino.metadata.SqlAggregationFunction

io.trino.operator.aggregation.histogram.Histogram

All Implemented Interfaces:

SqlFunction

public class Histogram
extends SqlAggregationFunction

Field Summary

Fields

Modifier and Type	Field	Description
static final int	EXPECTED_SIZE_FOR_HASHING
static final String	NAME

Constructor Summary

Constructors

Constructor	Description
Histogram(BlockTypeOperators blockTypeOperators)

Method Summary

Modifier and Type	Method	Description
static void	combine(HistogramState state, HistogramState otherState)
static void	input(Type type, HistogramState state, Block key, int position)
static void	output(Type type, HistogramState state, BlockBuilder out)
AggregationMetadata	specialize(BoundSignature boundSignature)

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, getFunctionDependencies

Field Details

NAME

public static final String NAME

See Also:

• Constant Field Values

EXPECTED_SIZE_FOR_HASHING

public static final int EXPECTED_SIZE_FOR_HASHING

See Also:

• Constant Field Values

Constructor Details

Histogram

public Histogram(BlockTypeOperators blockTypeOperators)

Method Details

specialize

public AggregationMetadata specialize(BoundSignature boundSignature)

Overrides:

specialize in class SqlAggregationFunction

input

public static void input(Type type,
 HistogramState state,
 Block key,
 int position)

combine

public static void combine(HistogramState state,
 HistogramState otherState)

output

public static void output(Type type,
 HistogramState state,
 BlockBuilder out)