org.apache.drill.exec.physical.impl.scan.project

Class AbstractUnresolvedColumn.UnresolvedColumn

java.lang.Object

org.apache.drill.exec.physical.impl.scan.project.AbstractUnresolvedColumn

org.apache.drill.exec.physical.impl.scan.project.AbstractUnresolvedColumn.UnresolvedColumn

All Implemented Interfaces:

ColumnProjection

Enclosing class:

AbstractUnresolvedColumn

public static class AbstractUnresolvedColumn.UnresolvedColumn
extends AbstractUnresolvedColumn

Represents an unresolved table column to be provided by the reader (or filled in with nulls.) May be associated with a provided schema column.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.drill.exec.physical.impl.scan.project.AbstractUnresolvedColumn

AbstractUnresolvedColumn.UnresolvedColumn, AbstractUnresolvedColumn.UnresolvedWildcardColumn

Field Summary

Fields inherited from class org.apache.drill.exec.physical.impl.scan.project.AbstractUnresolvedColumn

inCol

Constructor Summary

Constructors

Constructor and Description
UnresolvedColumn(RequestedColumn inCol)
UnresolvedColumn(RequestedColumn inCol, ColumnMetadata colDefn)

Method Summary

Modifier and Type	Method and Description
ColumnMetadata	metadata()
String	name() The name of the column as it appears in the output row (record batch.)

Methods inherited from class org.apache.drill.exec.physical.impl.scan.project.AbstractUnresolvedColumn

element, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

UnresolvedColumn

public UnresolvedColumn(RequestedColumn inCol)

UnresolvedColumn

public UnresolvedColumn(RequestedColumn inCol,
                        ColumnMetadata colDefn)

Method Detail

metadata

public ColumnMetadata metadata()

name

public String name()

Description copied from interface: ColumnProjection

The name of the column as it appears in the output row (record batch.)

Specified by:

name in interface ColumnProjection

Overrides:

name in class AbstractUnresolvedColumn

Returns:

the output column name