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 class	Partitioning.ArgumentBinding
static 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	isRepartitionEffective(Collection<Symbol> keys, 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	withAlternativePartitiongingHandle(PartitioningHandle partitiongingHandle)

Methods inherited from class java.lang.Object

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

Method Detail

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)

isEffectivelySinglePartition

public boolean isEffectivelySinglePartition(Set<Symbol> knownConstants)

isRepartitionEffective

public boolean isRepartitionEffective(Collection<Symbol> keys,
                                      Set<Symbol> knownConstants)

translate

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

translate

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

withAlternativePartitiongingHandle

public Partitioning withAlternativePartitiongingHandle(PartitioningHandle partitiongingHandle)

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