Package org.apache.drill.exec.physical.base

Interface DbSubScan

All Superinterfaces:

FragmentLeaf, GraphValue<PhysicalOperator>, Iterable<PhysicalOperator>, Leaf, PhysicalOperator, Scan, SubScan

All Known Implementing Classes:

AbstractDbSubScan

public interface DbSubScan
extends SubScan

Method Summary

Modifier and Type	Method	Description
void	addJoinForRestrictedSubScan(RowKeyJoin batch)	For a restricted sub-scan, this method allows associating a rowkey join instance.
boolean	isRestrictedSubScan()	Whether this subscan is a restricted (skip) subscan

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

accept

Methods inherited from interface java.lang.Iterable

forEach, iterator, spliterator

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

accept, getCost, getInitialAllocation, getMaxAllocation, getNewWithChildren, getOperatorId, getOperatorType, getSVMode, getUserName, isBufferedOperator, isExecutable, setCost, setMaxAllocation, setOperatorId

Method Details

isRestrictedSubScan

boolean isRestrictedSubScan()

Whether this subscan is a restricted (skip) subscan

Returns:

true if this subscan is a restricted subscan, false otherwise

addJoinForRestrictedSubScan

void addJoinForRestrictedSubScan(RowKeyJoin batch)

For a restricted sub-scan, this method allows associating a rowkey join instance. A subscan within a minor fragment must have a corresponding rowkey join batch instance from which it will retrieve its set of rowkeys to perform the restricted scan.

Parameters:

batch -