Package io.trino.sql.planner

Class Partitioning

java.lang.Object

io.trino.sql.planner.Partitioning

@Immutable
public final class Partitioning
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	Partitioning.ArgumentBinding
static final class	Partitioning.Translator

Method Summary

Modifier and Type	Method	Description
static Partitioning	create(PartitioningHandle handle, List<Symbol> columns)
boolean	equals(Object obj)
List<Partitioning.ArgumentBinding>	getArguments()
Set<Symbol>	getColumns()
PartitioningHandle	getHandle()
int	hashCode()
boolean	isCompatibleWith(Partitioning right, Metadata metadata, Session session)
boolean	isCompatibleWith(Partitioning right, Function<Symbol,Set<Symbol>> leftToRightMappings, Function<Symbol,Optional<NullableValue>> leftConstantMapping, Function<Symbol,Optional<NullableValue>> rightConstantMapping, Metadata metadata, Session session)
boolean	isEffectivelySinglePartition(Set<Symbol> knownConstants)
boolean	isPartitionedOn(Collection<Symbol> columns, Set<Symbol> knownConstants)
boolean	isPartitionedOnExactly(Collection<Symbol> columns, Set<Symbol> knownConstants)
static Partitioning	jsonCreate(PartitioningHandle handle, List<Partitioning.ArgumentBinding> arguments)
String	toString()
Optional<Partitioning>	translate(Partitioning.Translator translator)
Partitioning	translate(Function<Symbol,Symbol> translator)
Partitioning	withAlternativePartitioningHandle(PartitioningHandle partitioningHandle)

Methods inherited from class java.lang.Object

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

Method Details

create

public static Partitioning create(PartitioningHandle handle,
 List<Symbol> columns)

jsonCreate

public static Partitioning jsonCreate(PartitioningHandle handle,
 List<Partitioning.ArgumentBinding> arguments)

getHandle

public PartitioningHandle getHandle()

getArguments

public List<Partitioning.ArgumentBinding> getArguments()

getColumns

public Set<Symbol> getColumns()

isCompatibleWith

public boolean isCompatibleWith(Partitioning right,
 Metadata metadata,
 Session session)

isCompatibleWith

public boolean isCompatibleWith(Partitioning right,
 Function<Symbol,Set<Symbol>> leftToRightMappings,
 Function<Symbol,Optional<NullableValue>> leftConstantMapping,
 Function<Symbol,Optional<NullableValue>> rightConstantMapping,
 Metadata metadata,
 Session session)

isPartitionedOn

public boolean isPartitionedOn(Collection<Symbol> columns,
 Set<Symbol> knownConstants)

isPartitionedOnExactly

public boolean isPartitionedOnExactly(Collection<Symbol> columns,
 Set<Symbol> knownConstants)

isEffectivelySinglePartition

public boolean isEffectivelySinglePartition(Set<Symbol> knownConstants)

translate

public Partitioning translate(Function<Symbol,Symbol> translator)

translate

public Optional<Partitioning> translate(Partitioning.Translator translator)

withAlternativePartitioningHandle

public Partitioning withAlternativePartitioningHandle(PartitioningHandle partitioningHandle)

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object