org.apache.drill.exec.store.ischema

Class InfoSchemaGroupScan

java.lang.Object

org.apache.drill.exec.physical.base.AbstractBase

org.apache.drill.exec.physical.base.AbstractGroupScan

org.apache.drill.exec.store.ischema.InfoSchemaGroupScan

All Implemented Interfaces:

Iterable<PhysicalOperator>, GraphValue<PhysicalOperator>, FragmentLeaf, GroupScan, HasAffinity, Leaf, PhysicalOperator, Scan

public class InfoSchemaGroupScan
extends AbstractGroupScan

Field Summary

Fields inherited from class org.apache.drill.exec.physical.base.AbstractBase

INIT_ALLOCATION, initialAllocation, MAX_ALLOCATION, maxAllocation

Fields inherited from interface org.apache.drill.exec.physical.base.GroupScan

ALL_COLUMNS, NO_COLUMN_STATS

Constructor Summary

Constructors

Constructor and Description
InfoSchemaGroupScan(InfoSchemaTableType table)
InfoSchemaGroupScan(InfoSchemaTableType table, InfoSchemaFilter filter)

Method Summary

Methods

Modifier and Type	Method and Description
void	applyAssignments(List<CoordinationProtos.DrillbitEndpoint> endpoints)
GroupScan	clone(List<SchemaPath> columns) Returns a clone of GroupScan instance, except that the new GroupScan will use the provided list of columns .
String	getDigest() Returns a signature of the GroupScan which should usually be composed of all its attributes which could describe it uniquely.
InfoSchemaFilter	getFilter()
int	getMaxParallelizationWidth()
PhysicalOperator	getNewWithChildren(List<PhysicalOperator> children) Regenerate with this node with a new set of children.
ScanStats	getScanStats()
SubScan	getSpecificScan(int minorFragmentId)
InfoSchemaTableType	getTable()
boolean	isFilterPushedDown()
void	setFilterPushedDown(boolean status)

Methods inherited from class org.apache.drill.exec.physical.base.AbstractGroupScan

accept, applyLimit, canPushdownProjects, enforceWidth, getColumnValueCount, getDistributionAffinity, getFiles, getInitialAllocation, getMaxAllocation, getMinParallelizationWidth, getOperatorAffinity, getOperatorType, getPartitionColumns, getScanStats, hasFiles, isExecutable, iterator, supportsLimitPushdown, supportsPartitionFilterPushdown

Methods inherited from class org.apache.drill.exec.physical.base.AbstractBase

accept, getCost, getOperatorId, getSVMode, getUserName, isBufferedOperator, setCost, setMaxAllocation, setOperatorId

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.drill.exec.physical.base.PhysicalOperator

getCost, getOperatorId, getSVMode, getUserName, isBufferedOperator, setCost, setMaxAllocation, setOperatorId

Methods inherited from interface org.apache.drill.common.graph.GraphValue

accept

Constructor Detail

InfoSchemaGroupScan

public InfoSchemaGroupScan(InfoSchemaTableType table)

InfoSchemaGroupScan

public InfoSchemaGroupScan(InfoSchemaTableType table,
                   InfoSchemaFilter filter)

Method Detail

getTable

public InfoSchemaTableType getTable()

getFilter

public InfoSchemaFilter getFilter()

applyAssignments

public void applyAssignments(List<CoordinationProtos.DrillbitEndpoint> endpoints)
                      throws PhysicalOperatorSetupException

Throws:

PhysicalOperatorSetupException

getSpecificScan

public SubScan getSpecificScan(int minorFragmentId)
                        throws ExecutionSetupException

Throws:

ExecutionSetupException

getScanStats

public ScanStats getScanStats()

Overrides:

getScanStats in class AbstractGroupScan

getMaxParallelizationWidth

public int getMaxParallelizationWidth()

getNewWithChildren

public PhysicalOperator getNewWithChildren(List<PhysicalOperator> children)
                                    throws ExecutionSetupException

Description copied from interface: PhysicalOperator

Regenerate with this node with a new set of children. This is used in the case of materialization or optimization.

Returns:

Throws:

ExecutionSetupException

getDigest

public String getDigest()

Description copied from interface: GroupScan

Returns a signature of the GroupScan which should usually be composed of all its attributes which could describe it uniquely.

clone

public GroupScan clone(List<SchemaPath> columns)

Description copied from interface: GroupScan

Returns a clone of GroupScan instance, except that the new GroupScan will use the provided list of columns .

Specified by:

clone in interface GroupScan

Overrides:

clone in class AbstractGroupScan

setFilterPushedDown

public void setFilterPushedDown(boolean status)

isFilterPushedDown

public boolean isFilterPushedDown()