Package org.apache.calcite.adapter.enumerable

Class EnumerableSemiJoin

java.lang.Object

org.apache.calcite.rel.AbstractRelNode

org.apache.calcite.rel.BiRel

org.apache.calcite.rel.core.Join

org.apache.calcite.rel.core.EquiJoin

org.apache.calcite.rel.core.SemiJoin

org.apache.calcite.adapter.enumerable.EnumerableSemiJoin

All Implemented Interfaces:

java.lang.Cloneable, EnumerableRel, RelOptNode, RelNode

public class EnumerableSemiJoin
extends SemiJoin
implements EnumerableRel

Implementation of SemiJoin 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.EquiJoin

leftKeys, rightKeys

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

condition, joinType, variablesSet

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

left, right

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

digest, id, rowType, traitSet

Fields inherited from interface org.apache.calcite.adapter.enumerable.EnumerableRel

FILTER_FACTORY, PROJECT_FACTORY

Constructor Summary

Constructors

Constructor	Description
EnumerableSemiJoin(RelOptCluster cluster, RelTraitSet traits, RelNode left, RelNode right, RexNode condition, ImmutableIntList leftKeys, ImmutableIntList rightKeys)	Creates an EnumerableSemiJoin.

Method Summary

Modifier and Type	Method	Description
RelOptCost	computeSelfCost(RelOptPlanner planner, RelMetadataQuery mq)	Returns the cost of this plan (not including children).
SemiJoin	copy(RelTraitSet traitSet, RexNode condition, RelNode left, RelNode right, JoinRelType joinType, boolean semiJoinDone)	Creates a copy of this join, overriding condition, system fields and inputs.
static EnumerableSemiJoin	create(RelNode left, RelNode right, RexNode condition, ImmutableIntList leftKeys, ImmutableIntList rightKeys)	Creates an EnumerableSemiJoin.
EnumerableRel.Result	implement(EnumerableRelImplementor implementor, EnumerableRel.Prefer pref)	Creates a plan for this expression according to a calling convention.

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

deriveRowType, estimateRowCount

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

analyzeCondition, getLeftKeys, getRightKeys

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

accept, copy, createJoinType, deriveJoinRowType, estimateJoinedRows, explainTerms, getChildExps, getCondition, getJoinType, getSystemFieldList, getVariablesSet, isSemiJoinDone, 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, collectVariablesSet, collectVariablesUsed, computeDigest, computeSelfCost, explain, getCluster, getCollationList, getConvention, getCorrelVariable, getDescription, getDigest, getExpectedInputRowType, getId, getInput, getQuery, getRelTypeName, getRows, getRowType, getTable, getTraitSet, getVariablesStopped, isDistinct, isKey, isValid, metadata, onRegister, recomputeDigest, register, sole, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

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

accept, accept, childrenAccept, collectVariablesSet, collectVariablesUsed, computeSelfCost, copy, estimateRowCount, explain, getChildExps, getCollationList, getConvention, getCorrelVariable, getExpectedInputRowType, getInput, getInputs, getQuery, getRelTypeName, getRows, getRowType, getTable, getVariablesSet, getVariablesStopped, isDistinct, isKey, isValid, isValid, metadata, onRegister, recomputeDigest, register, replaceInput

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

getCluster, getDescription, getDigest, getId, getTraitSet

Constructor Detail

EnumerableSemiJoin

EnumerableSemiJoin(RelOptCluster cluster,
                   RelTraitSet traits,
                   RelNode left,
                   RelNode right,
                   RexNode condition,
                   ImmutableIntList leftKeys,
                   ImmutableIntList rightKeys)
            throws InvalidRelException

Creates an EnumerableSemiJoin.

Use create(org.apache.calcite.rel.RelNode, org.apache.calcite.rel.RelNode, org.apache.calcite.rex.RexNode, org.apache.calcite.util.ImmutableIntList, org.apache.calcite.util.ImmutableIntList) unless you know what you're doing.

Throws:

InvalidRelException

Method Detail

create

public static EnumerableSemiJoin create(RelNode left,
                                        RelNode right,
                                        RexNode condition,
                                        ImmutableIntList leftKeys,
                                        ImmutableIntList rightKeys)

Creates an EnumerableSemiJoin.

copy

public SemiJoin copy(RelTraitSet traitSet,
                     RexNode condition,
                     RelNode left,
                     RelNode right,
                     JoinRelType joinType,
                     boolean semiJoinDone)

Description copied from class: Join

Creates a copy of this join, overriding condition, system fields and inputs.

General contract as RelNode.copy(org.apache.calcite.plan.RelTraitSet, java.util.List<org.apache.calcite.rel.RelNode>).

Overrides:

copy in class SemiJoin

Parameters:

traitSet - Traits

condition - Condition

left - Left input

right - Right input

joinType - Join type

semiJoinDone - Whether this join has been translated to a semi-join

Returns:

Copy of this join

computeSelfCost

public RelOptCost computeSelfCost(RelOptPlanner planner,
                                  RelMetadataQuery mq)

Description copied from interface: RelNode

Returns the cost of this plan (not including children). The base implementation throws an error; derived classes should override.

NOTE jvs 29-Mar-2006: Don't call this method directly. Instead, use RelMetadataQuery.getNonCumulativeCost(org.apache.calcite.rel.RelNode), which gives plugins a chance to override the rel's default ideas about cost.

Specified by:

computeSelfCost in interface RelNode

Overrides:

computeSelfCost in class SemiJoin

Parameters:

planner - Planner for cost calculation

mq - Metadata query

Returns:

Cost of this plan (not including children)

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