org.apache.kylin.query.relnode

Class OLAPTableScan

java.lang.Object

org.apache.calcite.rel.AbstractRelNode

org.apache.calcite.rel.core.TableScan

org.apache.kylin.query.relnode.OLAPTableScan

All Implemented Interfaces:

Cloneable, EnumerableRel, org.apache.calcite.plan.RelOptNode, org.apache.calcite.rel.RelNode, OLAPRel

public class OLAPTableScan
extends org.apache.calcite.rel.core.TableScan
implements OLAPRel, EnumerableRel

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.kylin.query.relnode.OLAPRel

OLAPRel.JavaImplementor, OLAPRel.OLAPImplementor, OLAPRel.RewriteImplementor

Nested classes/interfaces inherited from interface org.apache.calcite.adapter.enumerable.EnumerableRel

EnumerableRel.Prefer, EnumerableRel.Result

Field Summary

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

table

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

digest, id, rowType, traitSet

Fields inherited from interface org.apache.kylin.query.relnode.OLAPRel

CONVENTION, logger

Fields inherited from interface org.apache.calcite.adapter.enumerable.EnumerableRel

FILTER_FACTORY, PROJECT_FACTORY

Constructor Summary

Constructors

Constructor and Description
OLAPTableScan(org.apache.calcite.plan.RelOptCluster cluster, org.apache.calcite.plan.RelOptTable table, OLAPTable olapTable, int[] fields)

Method Summary

Methods

Modifier and Type	Method and Description
org.apache.calcite.plan.RelOptCost	computeSelfCost(org.apache.calcite.plan.RelOptPlanner planner)
org.apache.calcite.rel.RelNode	copy(org.apache.calcite.plan.RelTraitSet traitSet, List<org.apache.calcite.rel.RelNode> inputs)
org.apache.calcite.rel.type.RelDataType	deriveRowType()
org.apache.calcite.rel.RelWriter	explainTerms(org.apache.calcite.rel.RelWriter pw)
ColumnRowType	getColumnRowType() get the row type of ColumnDesc
OLAPContext	getContext() get olap context
int[]	getFields()
OLAPTable	getOlapTable()
String	getTableName()
boolean	hasSubQuery() whether has sub query
EnumerableRel.Result	implement(EnumerableRelImplementor implementor, EnumerableRel.Prefer pref)
EnumerableRel	implementEnumerable(List<EnumerableRel> inputs)
void	implementOLAP(OLAPRel.OLAPImplementor implementor)
void	implementRewrite(OLAPRel.RewriteImplementor implementor) Because OLAPTableScan is reused for the same table, we can't use this.context and have to use parent context
void	register(org.apache.calcite.plan.RelOptPlanner planner)
org.apache.calcite.plan.RelTraitSet	replaceTraitSet(org.apache.calcite.plan.RelTrait trait) replace RelTraitSet

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

accept, getCollationList, getRows, getTable, identity, identity, isKey, project

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

accept, childrenAccept, collectVariablesSet, collectVariablesUsed, computeDigest, explain, getChildExps, getCluster, getConvention, getCorrelVariable, getDescription, getDigest, getExpectedInputRowType, getId, getInput, getInputs, getQuery, getRelTypeName, getRowType, getTraitSet, getVariablesStopped, isDistinct, isValid, metadata, onRegister, recomputeDigest, replaceInput, 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, explain, getChildExps, getCollationList, getConvention, getCorrelVariable, getExpectedInputRowType, getInput, getInputs, getQuery, getRelTypeName, getRows, getRowType, getTable, getVariablesStopped, isDistinct, isKey, isValid, metadata, onRegister, recomputeDigest, replaceInput

Methods inherited from interface org.apache.calcite.plan.RelOptNode

getCluster, getDescription, getDigest, getId, getTraitSet

Constructor Detail

OLAPTableScan

public OLAPTableScan(org.apache.calcite.plan.RelOptCluster cluster,
             org.apache.calcite.plan.RelOptTable table,
             OLAPTable olapTable,
             int[] fields)

Method Detail

getOlapTable

public OLAPTable getOlapTable()

getTableName

public String getTableName()

getFields

public int[] getFields()

getContext

public OLAPContext getContext()

Description copied from interface: OLAPRel

get olap context

Specified by:

getContext in interface OLAPRel

copy

public org.apache.calcite.rel.RelNode copy(org.apache.calcite.plan.RelTraitSet traitSet,
                                  List<org.apache.calcite.rel.RelNode> inputs)

Specified by:

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

Overrides:

copy in class org.apache.calcite.rel.AbstractRelNode

register

public void register(org.apache.calcite.plan.RelOptPlanner planner)

Specified by:

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

Overrides:

register in class org.apache.calcite.rel.AbstractRelNode

deriveRowType

public org.apache.calcite.rel.type.RelDataType deriveRowType()

Overrides:

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

computeSelfCost

public org.apache.calcite.plan.RelOptCost computeSelfCost(org.apache.calcite.plan.RelOptPlanner planner)

Specified by:

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

Overrides:

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

explainTerms

public org.apache.calcite.rel.RelWriter explainTerms(org.apache.calcite.rel.RelWriter pw)

Overrides:

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

implementOLAP

public void implementOLAP(OLAPRel.OLAPImplementor implementor)

Specified by:

implementOLAP in interface OLAPRel

implementEnumerable

public EnumerableRel implementEnumerable(List<EnumerableRel> inputs)

Specified by:

implementEnumerable in interface OLAPRel

implement

public EnumerableRel.Result implement(EnumerableRelImplementor implementor,
                             EnumerableRel.Prefer pref)

Specified by:

implement in interface EnumerableRel

getColumnRowType

public ColumnRowType getColumnRowType()

Description copied from interface: OLAPRel

get the row type of ColumnDesc

Specified by:

getColumnRowType in interface OLAPRel

Returns:

implementRewrite

public void implementRewrite(OLAPRel.RewriteImplementor implementor)

Because OLAPTableScan is reused for the same table, we can't use this.context and have to use parent context

Specified by:

implementRewrite in interface OLAPRel

hasSubQuery

public boolean hasSubQuery()

Description copied from interface: OLAPRel

whether has sub query

Specified by:

hasSubQuery in interface OLAPRel

replaceTraitSet

public org.apache.calcite.plan.RelTraitSet replaceTraitSet(org.apache.calcite.plan.RelTrait trait)

Description copied from interface: OLAPRel

replace RelTraitSet

Specified by:

replaceTraitSet in interface OLAPRel