Package io.trino.operator

Interface GroupByHash

All Known Implementing Classes:

BigintGroupByHash, MultiChannelGroupByHash, NoChannelGroupByHash

public interface GroupByHash

Method Summary

Modifier and Type	Method	Description
Work<?>	addPage(Page page)
void	appendValuesTo(int groupId, PageBuilder pageBuilder, int outputChannelOffset)
boolean	contains(int position, Page page, int[] hashChannels)
default boolean	contains(int position, Page page, int[] hashChannels, long rawHash)
static GroupByHash	createGroupByHash(Session session, List<? extends Type> hashTypes, int[] hashChannels, Optional<Integer> inputHashChannel, int expectedSize, JoinCompiler joinCompiler, BlockTypeOperators blockTypeOperators, UpdateMemory updateMemory)
static GroupByHash	createGroupByHash(List<? extends Type> hashTypes, int[] hashChannels, Optional<Integer> inputHashChannel, int expectedSize, boolean processDictionary, JoinCompiler joinCompiler, BlockTypeOperators blockTypeOperators, UpdateMemory updateMemory)
int	getCapacity()
long	getEstimatedSize()
double	getExpectedHashCollisions()
int	getGroupCount()
Work<GroupByIdBlock>	getGroupIds(Page page)
long	getHashCollisions()
long	getRawHash(int groupyId)
List<Type>	getTypes()

Method Details

createGroupByHash

static GroupByHash createGroupByHash(Session session,
 List<? extends Type> hashTypes,
 int[] hashChannels,
 Optional<Integer> inputHashChannel,
 int expectedSize,
 JoinCompiler joinCompiler,
 BlockTypeOperators blockTypeOperators,
 UpdateMemory updateMemory)

createGroupByHash

static GroupByHash createGroupByHash(List<? extends Type> hashTypes,
 int[] hashChannels,
 Optional<Integer> inputHashChannel,
 int expectedSize,
 boolean processDictionary,
 JoinCompiler joinCompiler,
 BlockTypeOperators blockTypeOperators,
 UpdateMemory updateMemory)

getEstimatedSize

long getEstimatedSize()

getHashCollisions

long getHashCollisions()

getExpectedHashCollisions

double getExpectedHashCollisions()

getTypes

List<Type> getTypes()

getGroupCount

int getGroupCount()

appendValuesTo

void appendValuesTo(int groupId,
 PageBuilder pageBuilder,
 int outputChannelOffset)

addPage

Work<?> addPage(Page page)

getGroupIds

Work<GroupByIdBlock> getGroupIds(Page page)

contains

boolean contains(int position,
 Page page,
 int[] hashChannels)

contains

default boolean contains(int position,
 Page page,
 int[] hashChannels,
 long rawHash)

getRawHash

long getRawHash(int groupyId)

getCapacity

int getCapacity()