org.apache.calcite.adapter.enumerable

Class EnumerableThetaJoin

java.lang.Object

org.apache.calcite.rel.AbstractRelNode

org.apache.calcite.rel.BiRel

org.apache.calcite.rel.core.Join

org.apache.calcite.adapter.enumerable.EnumerableThetaJoin

All Implemented Interfaces:

Cloneable, EnumerableRel, RelOptNode, RelNode

public class EnumerableThetaJoin
extends Join
implements EnumerableRel

Implementation of Join in enumerable calling convention that allows conditions that are not just = (equals).

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.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

Modifier	Constructor and Description
protected	EnumerableThetaJoin(RelOptCluster cluster, RelTraitSet traits, RelNode left, RelNode right, RexNode condition, JoinRelType joinType, Set<String> variablesStopped) Deprecated.
protected	EnumerableThetaJoin(RelOptCluster cluster, RelTraitSet traits, RelNode left, RelNode right, RexNode condition, Set<CorrelationId> variablesSet, JoinRelType joinType) Creates an EnumerableThetaJoin.

Method Summary

Modifier and Type	Method and Description
private double	addEpsilon(double d)
RelOptCost	computeSelfCost(RelOptPlanner planner, RelMetadataQuery mq) Returns the cost of this plan (not including children).
EnumerableThetaJoin	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.
EnumerableRel.Result	implement(EnumerableRelImplementor implementor, EnumerableRel.Prefer pref) Creates a plan for this expression according to a calling convention.
(package private) Expression	predicate(EnumerableRelImplementor implementor, BlockBuilder builder, PhysType leftPhysType, PhysType rightPhysType, RexNode condition)

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

accept, analyzeCondition, copy, createJoinType, deriveJoinRowType, deriveRowType, estimateJoinedRows, estimateRowCount, 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

EnumerableThetaJoin

protected EnumerableThetaJoin(RelOptCluster cluster,
                              RelTraitSet traits,
                              RelNode left,
                              RelNode right,
                              RexNode condition,
                              Set<CorrelationId> variablesSet,
                              JoinRelType joinType)
                       throws InvalidRelException

Creates an EnumerableThetaJoin.

Throws:

InvalidRelException

EnumerableThetaJoin

@Deprecated
protected EnumerableThetaJoin(RelOptCluster cluster,
                                          RelTraitSet traits,
                                          RelNode left,
                                          RelNode right,
                                          RexNode condition,
                                          JoinRelType joinType,
                                          Set<String> variablesStopped)
                                   throws InvalidRelException

Deprecated.

Throws:

InvalidRelException

Method Detail

copy

public EnumerableThetaJoin 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>).

Specified by:

copy in class Join

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 Join

Parameters:

planner - Planner for cost calculation

mq - Metadata query

Returns:

Cost of this plan (not including children)

addEpsilon

private double addEpsilon(double d)

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

predicate

Expression predicate(EnumerableRelImplementor implementor,
                     BlockBuilder builder,
                     PhysType leftPhysType,
                     PhysType rightPhysType,
                     RexNode condition)