org.apache.drill.exec.store.plan.rel

Class PluginSortRel

java.lang.Object

org.apache.calcite.rel.AbstractRelNode

org.apache.calcite.rel.SingleRel

org.apache.calcite.rel.core.Sort

org.apache.drill.exec.planner.common.DrillSortRelBase

org.apache.drill.exec.store.plan.rel.PluginSortRel

All Implemented Interfaces:

Cloneable, org.apache.calcite.plan.RelOptNode, org.apache.calcite.rel.RelNode, DrillRelNode, OrderedRel, PluginRel

public class PluginSortRel
extends DrillSortRelBase
implements PluginRel

Sort implementation for Drill plugins.

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

Constructor Summary

Constructors

Constructor and Description
PluginSortRel(org.apache.calcite.plan.RelOptCluster cluster, org.apache.calcite.plan.RelTraitSet traitSet, org.apache.calcite.rel.RelNode child, org.apache.calcite.rel.RelCollation collation, org.apache.calcite.rex.RexNode offset, org.apache.calcite.rex.RexNode fetch)

Method Summary

Modifier and Type	Method and Description
boolean	canBeDropped() A method to return if this relational node can be dropped during optimization process.
boolean	canImplement(PluginImplementor implementor)
@Nullable org.apache.calcite.plan.RelOptCost	computeSelfCost(org.apache.calcite.plan.RelOptPlanner planner, org.apache.calcite.rel.metadata.RelMetadataQuery mq)
PluginSortRel	copy(org.apache.calcite.plan.RelTraitSet traitSet, org.apache.calcite.rel.RelNode input, org.apache.calcite.rel.RelCollation newCollation, org.apache.calcite.rex.RexNode offset, org.apache.calcite.rex.RexNode fetch)
void	implement(PluginImplementor implementor)

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

getFetch, getOffset

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.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 org.apache.drill.exec.planner.common.OrderedRel

getCollation

Constructor Detail

PluginSortRel

public PluginSortRel(org.apache.calcite.plan.RelOptCluster cluster,
                     org.apache.calcite.plan.RelTraitSet traitSet,
                     org.apache.calcite.rel.RelNode child,
                     org.apache.calcite.rel.RelCollation collation,
                     org.apache.calcite.rex.RexNode offset,
                     org.apache.calcite.rex.RexNode fetch)

Method Detail

computeSelfCost

public @Nullable 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

copy

public PluginSortRel copy(org.apache.calcite.plan.RelTraitSet traitSet,
                          org.apache.calcite.rel.RelNode input,
                          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

implement

public void implement(PluginImplementor implementor)
               throws IOException

Specified by:

implement in interface PluginRel

Throws:

IOException

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.

canImplement

public boolean canImplement(PluginImplementor implementor)

Specified by:

canImplement in interface PluginRel