org.apache.drill.exec.planner.physical

Class SortPrel

java.lang.Object

org.apache.calcite.rel.AbstractRelNode

org.apache.calcite.rel.SingleRel

org.apache.calcite.rel.core.Sort

org.apache.drill.exec.planner.physical.SortPrel

All Implemented Interfaces:

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

public class SortPrel
extends org.apache.calcite.rel.core.Sort
implements OrderedRel, 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.Sort

collation, fetch, fieldExps, offset

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

input

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
SortPrel(org.apache.calcite.plan.RelOptCluster cluster, org.apache.calcite.plan.RelTraitSet traits, org.apache.calcite.rel.RelNode input, org.apache.calcite.rel.RelCollation collation) Creates a DrillSortRel.
SortPrel(org.apache.calcite.plan.RelOptCluster cluster, org.apache.calcite.plan.RelTraitSet traits, org.apache.calcite.rel.RelNode input, org.apache.calcite.rel.RelCollation collation, boolean isRemovable) Creates a DrillSortRel.
SortPrel(org.apache.calcite.plan.RelOptCluster cluster, org.apache.calcite.plan.RelTraitSet traits, org.apache.calcite.rel.RelNode input, org.apache.calcite.rel.RelCollation collation, org.apache.calcite.rex.RexNode offset, org.apache.calcite.rex.RexNode fetch) Creates a DrillSortRel with offset and fetch.

Method Summary

Modifier and Type	Method and Description
<T,X,E extends Throwable> T	accept(PrelVisitor<T,X,E> logicalVisitor, X value)
boolean	canBeDropped() A method to return if this relational node can be dropped during optimization process.
org.apache.calcite.plan.RelOptCost	computeSelfCost(org.apache.calcite.plan.RelOptPlanner planner, org.apache.calcite.rel.metadata.RelMetadataQuery mq)
SortPrel	copy(org.apache.calcite.plan.RelTraitSet traitSet, org.apache.calcite.rel.RelNode newInput, org.apache.calcite.rel.RelCollation newCollation, org.apache.calcite.rex.RexNode offset, org.apache.calcite.rex.RexNode fetch)
BatchSchema.SelectionVectorMode	getEncoding() A Prel's own SelectionVector mode - i.e whether it generates an SV2, SV4 or None
org.apache.calcite.rex.RexNode	getFetch() Fetch value represented in RexNode.
org.apache.calcite.rex.RexNode	getOffset() Offset value represented in RexNode.
PhysicalOperator	getPhysicalOperator(PhysicalPlanCreator creator)
BatchSchema.SelectionVectorMode[]	getSupportedEncodings() Supported 'encodings' of a Prel indicates what are the acceptable modes of SelectionVector of its child Prel
Iterator<Prel>	iterator()
boolean	needsFinalColumnReordering()
Prel	prepareForLateralUnnestPipeline(List<org.apache.calcite.rel.RelNode> children) If the operator is in Lateral/Unnest pipeline, then it generates a new operator which knows how to process the rows accordingly during execution.

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

accept, copy, copy, explainTerms, getChildExps, getCollation, getCollationList

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

childrenAccept, deriveRowType, estimateRowCount, getInput, getInputs, replaceInput

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

accept, collectVariablesSet, collectVariablesUsed, computeDigest, computeSelfCost, equals, explain, getCluster, getConvention, getCorrelVariable, getDescription, getDigest, getExpectedInputRowType, getId, getInput, getQuery, getRelTypeName, getRows, getRowType, getTable, getTraitSet, getVariablesSet, getVariablesStopped, hashCode, isDistinct, 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.common.OrderedRel

getCollation

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

SortPrel

public SortPrel(org.apache.calcite.plan.RelOptCluster cluster,
                org.apache.calcite.plan.RelTraitSet traits,
                org.apache.calcite.rel.RelNode input,
                org.apache.calcite.rel.RelCollation collation)

Creates a DrillSortRel.

SortPrel

public SortPrel(org.apache.calcite.plan.RelOptCluster cluster,
                org.apache.calcite.plan.RelTraitSet traits,
                org.apache.calcite.rel.RelNode input,
                org.apache.calcite.rel.RelCollation collation,
                org.apache.calcite.rex.RexNode offset,
                org.apache.calcite.rex.RexNode fetch)

Creates a DrillSortRel with offset and fetch.

SortPrel

public SortPrel(org.apache.calcite.plan.RelOptCluster cluster,
                org.apache.calcite.plan.RelTraitSet traits,
                org.apache.calcite.rel.RelNode input,
                org.apache.calcite.rel.RelCollation collation,
                boolean isRemovable)

Creates a DrillSortRel.

Method Detail

computeSelfCost

public org.apache.calcite.plan.RelOptCost computeSelfCost(org.apache.calcite.plan.RelOptPlanner planner,
                                                          org.apache.calcite.rel.metadata.RelMetadataQuery mq)

Specified by:

computeSelfCost in interface org.apache.calcite.rel.RelNode

Overrides:

computeSelfCost in class org.apache.calcite.rel.core.Sort

getPhysicalOperator

public PhysicalOperator getPhysicalOperator(PhysicalPlanCreator creator)
                                     throws IOException

Specified by:

getPhysicalOperator in interface Prel

Throws:

IOException

copy

public SortPrel copy(org.apache.calcite.plan.RelTraitSet traitSet,
                     org.apache.calcite.rel.RelNode newInput,
                     org.apache.calcite.rel.RelCollation newCollation,
                     org.apache.calcite.rex.RexNode offset,
                     org.apache.calcite.rex.RexNode fetch)

Specified by:

copy in class org.apache.calcite.rel.core.Sort

iterator

public Iterator<Prel> iterator()

Specified by:

iterator in interface Iterable<Prel>

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

getSupportedEncodings

public BatchSchema.SelectionVectorMode[] getSupportedEncodings()

Description copied from interface: Prel

Supported 'encodings' of a Prel indicates what are the acceptable modes of SelectionVector of its child Prel

Specified by:

getSupportedEncodings in interface Prel

getEncoding

public BatchSchema.SelectionVectorMode getEncoding()

Description copied from interface: Prel

A Prel's own SelectionVector mode - i.e whether it generates an SV2, SV4 or None

Specified by:

getEncoding in interface Prel

needsFinalColumnReordering

public boolean needsFinalColumnReordering()

Specified by:

needsFinalColumnReordering in interface Prel

prepareForLateralUnnestPipeline

public Prel prepareForLateralUnnestPipeline(List<org.apache.calcite.rel.RelNode> children)

Description copied from interface: Prel

If the operator is in Lateral/Unnest pipeline, then it generates a new operator which knows how to process the rows accordingly during execution. eg: TopNPrel -> SortPrel and LimitPrel Other operators like FilterPrel, ProjectPrel etc will add an implicit row id to the output.

Specified by:

prepareForLateralUnnestPipeline in interface Prel

getOffset

public org.apache.calcite.rex.RexNode getOffset()

Description copied from interface: OrderedRel

Offset value represented in RexNode.

Specified by:

getOffset in interface OrderedRel

Returns:

offset.

getFetch

public org.apache.calcite.rex.RexNode getFetch()

Description copied from interface: OrderedRel

Fetch value represented in RexNode.

Specified by:

getFetch in interface OrderedRel

Returns:

fetch

canBeDropped

public boolean canBeDropped()

Description copied from interface: OrderedRel

A method to return if this relational node can be dropped during optimization process.

Specified by:

canBeDropped in interface OrderedRel

Returns:

true if this node can be dropped, false otherwise.