org.apache.calcite.adapter.enumerable

Class EnumerableCorrelate

java.lang.Object

org.apache.calcite.rel.AbstractRelNode

org.apache.calcite.rel.BiRel

org.apache.calcite.rel.core.Correlate

org.apache.calcite.adapter.enumerable.EnumerableCorrelate

All Implemented Interfaces:

Cloneable, EnumerableRel, RelOptNode, Hintable, PhysicalNode, RelNode

public class EnumerableCorrelate
extends Correlate
implements EnumerableRel

Implementation of Correlate in enumerable calling convention.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.calcite.adapter.enumerable.EnumerableRel

EnumerableRel.Prefer, EnumerableRel.Result

Nested classes/interfaces inherited from interface org.apache.calcite.rel.RelNode

RelNode.Context

Field Summary

Fields inherited from class org.apache.calcite.rel.core.Correlate

correlationId, hints, joinType, requiredColumns

Fields inherited from class org.apache.calcite.rel.BiRel

left, right

Fields inherited from class org.apache.calcite.rel.AbstractRelNode

digest, id, rowType, traitSet

Constructor Summary

Constructors

Constructor and Description
EnumerableCorrelate(RelOptCluster cluster, RelTraitSet traits, RelNode left, RelNode right, CorrelationId correlationId, ImmutableBitSet requiredColumns, JoinRelType joinType)

Method Summary

Modifier and Type	Method and Description
EnumerableCorrelate	copy(RelTraitSet traitSet, RelNode left, RelNode right, CorrelationId correlationId, ImmutableBitSet requiredColumns, JoinRelType joinType)
static EnumerableCorrelate	create(RelNode left, RelNode right, CorrelationId correlationId, ImmutableBitSet requiredColumns, JoinRelType joinType) Creates an EnumerableCorrelate.
@Nullable Pair<RelTraitSet,List<RelTraitSet>>	deriveTraits(RelTraitSet childTraits, int childId) Derive traitset from child node, returns a pair of traits after traits derivation.
DeriveMode	getDeriveMode() Returns mode of derivation.
EnumerableRel.Result	implement(EnumerableRelImplementor implementor, EnumerableRel.Prefer pref) Creates a plan for this expression according to a calling convention.
@Nullable Pair<RelTraitSet,List<RelTraitSet>>	passThroughTraits(RelTraitSet required) Pass required traitset from parent node to child nodes, returns a pair of traits after traits is passed down.

Methods inherited from class org.apache.calcite.rel.core.Correlate

computeSelfCost, copy, deriveRowType, estimateRowCount, explainTerms, getCorrelationId, getCorrelVariable, getHints, getJoinType, getRequiredColumns, getVariablesSet, isValid

Methods inherited from class org.apache.calcite.rel.BiRel

childrenAccept, getInputs, getLeft, getRight, replaceInput

Methods inherited from class org.apache.calcite.rel.AbstractRelNode

accept, accept, collectVariablesSet, collectVariablesUsed, deepEquals, deepHashCode, equals, explain, getCluster, getConvention, getDescription, getDigest, getExpectedInputRowType, getId, getInput, getRelDigest, getRelTypeName, getRowType, getTable, getTraitSet, hashCode, isEnforcer, metadata, onRegister, recomputeDigest, register, sole, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.calcite.rel.PhysicalNode

derive, derive, passThrough

Methods inherited from interface org.apache.calcite.rel.RelNode

accept, accept, childrenAccept, collectVariablesSet, collectVariablesUsed, computeSelfCost, copy, deepEquals, deepHashCode, estimateRowCount, explain, explain, fieldIsNullable, getConvention, getCorrelVariable, getDigest, getExpectedInputRowType, getInput, getInputs, getRelDigest, getRelTypeName, getRowType, getTable, getVariablesSet, isEnforcer, isValid, metadata, onRegister, recomputeDigest, register, replaceInput

Methods inherited from interface org.apache.calcite.plan.RelOptNode

getCluster, getDescription, getId, getTraitSet

Methods inherited from interface org.apache.calcite.rel.hint.Hintable

attachHints, withHints

Constructor Detail

EnumerableCorrelate

public EnumerableCorrelate(RelOptCluster cluster,
                           RelTraitSet traits,
                           RelNode left,
                           RelNode right,
                           CorrelationId correlationId,
                           ImmutableBitSet requiredColumns,
                           JoinRelType joinType)

Method Detail

create

public static EnumerableCorrelate create(RelNode left,
                                         RelNode right,
                                         CorrelationId correlationId,
                                         ImmutableBitSet requiredColumns,
                                         JoinRelType joinType)

Creates an EnumerableCorrelate.

copy

public EnumerableCorrelate copy(RelTraitSet traitSet,
                                RelNode left,
                                RelNode right,
                                CorrelationId correlationId,
                                ImmutableBitSet requiredColumns,
                                JoinRelType joinType)

Specified by:

copy in class Correlate

passThroughTraits

public @Nullable Pair<RelTraitSet,List<RelTraitSet>> passThroughTraits(RelTraitSet required)

Description copied from interface: PhysicalNode

Pass required traitset from parent node to child nodes, returns a pair of traits after traits is passed down.

Pair.left: the new traitset

Pair.right: the list of required traitsets for child nodes

Specified by:

passThroughTraits in interface EnumerableRel

Specified by:

passThroughTraits in interface PhysicalNode

deriveTraits

public @Nullable Pair<RelTraitSet,List<RelTraitSet>> deriveTraits(RelTraitSet childTraits,
                                                                  int childId)

Description copied from interface: PhysicalNode

Derive traitset from child node, returns a pair of traits after traits derivation.

Pair.left: the new traitset

Pair.right: the list of required traitsets for child nodes

Specified by:

deriveTraits in interface EnumerableRel

Specified by:

deriveTraits in interface PhysicalNode

getDeriveMode

public DeriveMode getDeriveMode()

Description copied from interface: PhysicalNode

Returns mode of derivation.

Specified by:

getDeriveMode in interface EnumerableRel

Specified by:

getDeriveMode in interface PhysicalNode

implement

public EnumerableRel.Result implement(EnumerableRelImplementor implementor,
                                      EnumerableRel.Prefer pref)

Description copied from interface: EnumerableRel

Creates a plan for this expression according to a calling convention.

Specified by:

implement in interface EnumerableRel

Parameters:

implementor - Implementor

pref - Preferred representation for rows in result expression

Returns:

Plan for this expression according to a calling convention