org.apache.drill.exec.planner.common

Class DrillScanRelBase

java.lang.Object

org.apache.calcite.rel.AbstractRelNode

org.apache.calcite.rel.core.TableScan

org.apache.drill.exec.planner.common.DrillScanRelBase

All Implemented Interfaces:

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

Direct Known Subclasses:

DrillScanRel, ScanPrel

public abstract class DrillScanRelBase
extends org.apache.calcite.rel.core.TableScan
implements DrillRelNode

Base class for logical/physical scan rel implemented in Drill.

Nested Class Summary

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

org.apache.calcite.rel.RelNode.Context

Field Summary

Fields

Modifier and Type	Field and Description
protected DrillTable	drillTable
protected GroupScan	groupScan

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

table

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

digest, id, rowType, traitSet

Constructor Summary

Constructors

Constructor and Description
DrillScanRelBase(org.apache.calcite.plan.RelOptCluster cluster, org.apache.calcite.plan.RelTraitSet traits, GroupScan grpScan, org.apache.calcite.plan.RelOptTable table)
DrillScanRelBase(org.apache.calcite.plan.RelOptCluster cluster, org.apache.calcite.plan.RelTraitSet traits, org.apache.calcite.plan.RelOptTable table, List<SchemaPath> columns)

Method Summary

Modifier and Type	Method and Description
org.apache.calcite.plan.RelOptCost	computeSelfCost(org.apache.calcite.plan.RelOptPlanner planner, org.apache.calcite.rel.metadata.RelMetadataQuery mq)
abstract DrillScanRelBase	copy(org.apache.calcite.plan.RelTraitSet traitSet, GroupScan scan)
double	estimateRowCount(org.apache.calcite.rel.metadata.RelMetadataQuery mq)
DrillTable	getDrillTable()
GroupScan	getGroupScan()

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

accept, deriveRowType, explainTerms, getCollationList, getTable, identity, identity, project

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

accept, childrenAccept, collectVariablesSet, collectVariablesUsed, computeDigest, computeSelfCost, copy, equals, explain, getChildExps, getCluster, getConvention, getCorrelVariable, getDescription, getDigest, getExpectedInputRowType, getId, getInput, getInputs, getQuery, getRelTypeName, getRows, getRowType, getTraitSet, getVariablesSet, getVariablesStopped, hashCode, isDistinct, isKey, isValid, isValid, metadata, onRegister, recomputeDigest, register, replaceInput, 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, 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

Field Detail

groupScan

protected final GroupScan groupScan

drillTable

protected final DrillTable drillTable

Constructor Detail

DrillScanRelBase

public DrillScanRelBase(org.apache.calcite.plan.RelOptCluster cluster,
                        org.apache.calcite.plan.RelTraitSet traits,
                        org.apache.calcite.plan.RelOptTable table,
                        List<SchemaPath> columns)

DrillScanRelBase

public DrillScanRelBase(org.apache.calcite.plan.RelOptCluster cluster,
                        org.apache.calcite.plan.RelTraitSet traits,
                        GroupScan grpScan,
                        org.apache.calcite.plan.RelOptTable table)

Method Detail

getDrillTable

public DrillTable getDrillTable()

getGroupScan

public GroupScan getGroupScan()

estimateRowCount

public double estimateRowCount(org.apache.calcite.rel.metadata.RelMetadataQuery mq)

Specified by:

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

Overrides:

estimateRowCount in class org.apache.calcite.rel.core.TableScan

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.TableScan

copy

public abstract DrillScanRelBase copy(org.apache.calcite.plan.RelTraitSet traitSet,
                                      GroupScan scan)