org.apache.drill.exec.planner.physical

Class UnionPrel

java.lang.Object

org.apache.calcite.rel.AbstractRelNode

org.apache.calcite.rel.core.SetOp

org.apache.calcite.rel.core.Union

org.apache.drill.exec.planner.common.DrillUnionRelBase

org.apache.drill.exec.planner.physical.UnionPrel

All Implemented Interfaces:

Cloneable, Iterable<Prel>, org.apache.calcite.plan.RelOptNode, org.apache.calcite.rel.RelNode, DrillRelNode, Prel

Direct Known Subclasses:

UnionAllPrel, UnionDistinctPrel

public abstract class UnionPrel
extends DrillUnionRelBase
implements Prel

Nested Class Summary

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

org.apache.calcite.rel.RelNode.Context

Field Summary

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

all, inputs, kind

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

digest, id, rowType, traitSet

Fields inherited from interface org.apache.drill.exec.planner.physical.Prel

DRILL_PHYSICAL

Constructor Summary

Constructors

Constructor and Description
UnionPrel(org.apache.calcite.plan.RelOptCluster cluster, org.apache.calcite.plan.RelTraitSet traits, List<org.apache.calcite.rel.RelNode> inputs, boolean all, boolean checkCompatibility)

Method Summary

Modifier and Type	Method and Description
<T,X,E extends Throwable> T	accept(PrelVisitor<T,X,E> logicalVisitor, X value)
Iterator<Prel>	iterator()
boolean	needsFinalColumnReordering()

Methods inherited from class org.apache.drill.exec.planner.common.DrillUnionRelBase

isCompatible, isDistinct

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

estimateRowCount, estimateRowCount

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

copy, copy, deriveRowType, explainTerms, getInputs, isHomogeneous, replaceInput

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

accept, accept, childrenAccept, collectVariablesSet, collectVariablesUsed, computeDigest, computeSelfCost, computeSelfCost, equals, explain, getChildExps, getCluster, getCollationList, getConvention, getCorrelVariable, getDescription, getDigest, getExpectedInputRowType, getId, getInput, getQuery, getRelTypeName, getRows, getRowType, getTable, getTraitSet, getVariablesSet, getVariablesStopped, hashCode, isKey, isValid, isValid, 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.drill.exec.planner.physical.Prel

getEncoding, getPhysicalOperator, getSupportedEncodings, prepareForLateralUnnestPipeline

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

accept, accept, childrenAccept, collectVariablesSet, collectVariablesUsed, computeSelfCost, 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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

UnionPrel

public UnionPrel(org.apache.calcite.plan.RelOptCluster cluster,
                 org.apache.calcite.plan.RelTraitSet traits,
                 List<org.apache.calcite.rel.RelNode> inputs,
                 boolean all,
                 boolean checkCompatibility)
          throws org.apache.calcite.rel.InvalidRelException

Throws:

org.apache.calcite.rel.InvalidRelException

Method Detail

accept

public <T,X,E extends Throwable> T accept(PrelVisitor<T,X,E> logicalVisitor,
                                          X value)
                                   throws E extends Throwable

Specified by:

accept in interface Prel

Throws:

E extends Throwable

iterator

public Iterator<Prel> iterator()

Specified by:

iterator in interface Iterable<Prel>

needsFinalColumnReordering

public boolean needsFinalColumnReordering()

Specified by:

needsFinalColumnReordering in interface Prel