org.apache.drill.exec.store.jdbc

Class JdbcGroupScan

java.lang.Object

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

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

org.apache.drill.exec.store.jdbc.JdbcGroupScan

All Implemented Interfaces:

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

public class JdbcGroupScan
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

Constructor Summary

Constructors

Constructor and Description
JdbcGroupScan(String sql, List<SchemaPath> columns, StoragePluginConfig config, double rows, StoragePluginRegistry plugins)

Method Summary

Modifier and Type	Method and Description
void	applyAssignments(List<CoordinationProtos.DrillbitEndpoint> endpoints)
List<SchemaPath>	getColumns() Returns a list of columns scanned by this group scan
StoragePluginConfig	getConfig()
String	getDigest() Returns a signature of the GroupScan which should usually be composed of all its attributes which could describe it uniquely.
int	getMaxParallelizationWidth()
PhysicalOperator	getNewWithChildren(List<PhysicalOperator> children) Regenerate with this node with a new set of children.
ScanStats	getScanStats()
SubScan	getSpecificScan(int minorFragmentId)
String	getSql()

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

accept, applyFilter, applyLimit, canPushdownProjects, clone, enforceWidth, getAnalyzeInfoProvider, getColumnValueCount, getDistributionAffinity, getFiles, getFilter, getInitialAllocation, getMaxAllocation, getMetadataProvider, getMinParallelizationWidth, getOperatorAffinity, getOperatorType, getPartitionColumns, getScanStats, getSelectionRoot, getTableMetadata, hasFiles, isDistributed, isExecutable, iterator, supportsFilterPushDown, supportsLimitPushdown, supportsPartitionFilterPushdown, usedMetastore

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

JdbcGroupScan

public JdbcGroupScan(String sql,
                     List<SchemaPath> columns,
                     StoragePluginConfig config,
                     double rows,
                     StoragePluginRegistry plugins)
              throws ExecutionSetupException

Throws:

ExecutionSetupException

Method Detail

applyAssignments

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

getSpecificScan

public SubScan getSpecificScan(int minorFragmentId)

getMaxParallelizationWidth

public int getMaxParallelizationWidth()

getScanStats

public ScanStats getScanStats()

Overrides:

getScanStats in class AbstractGroupScan

getSql

public String getSql()

getColumns

public List<SchemaPath> getColumns()

Description copied from interface: GroupScan

Returns a list of columns scanned by this group scan

Specified by:

getColumns in interface GroupScan

Overrides:

getColumns in class AbstractGroupScan

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.

getConfig

public StoragePluginConfig getConfig()

getNewWithChildren

public PhysicalOperator getNewWithChildren(List<PhysicalOperator> children)

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.