org.apache.calcite.materialize

Class Lattice.BaseColumn

java.lang.Object

org.apache.calcite.materialize.Lattice.Column

org.apache.calcite.materialize.Lattice.BaseColumn

All Implemented Interfaces:

Comparable<Lattice.Column>

Enclosing class:

Lattice

public static class Lattice.BaseColumn
extends Lattice.Column

Column in a lattice. Columns are identified by table alias and column name, and may have an additional alias that is unique within the entire lattice.

Field Summary

Fields

Modifier and Type	Field and Description
String	column Name of the column.
String	table Alias of the table reference that the column belongs to.

Fields inherited from class org.apache.calcite.materialize.Lattice.Column

alias, ordinal

Method Summary

Modifier and Type	Method and Description
String	defaultAlias() The alias that SQL would give to this expression.
List<String>	identifiers()
void	toSql(Lattice.SqlWriter writer)
String	toString()

Methods inherited from class org.apache.calcite.materialize.Lattice.Column

compareTo, equals, hashCode

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

table

public final String table

Alias of the table reference that the column belongs to.

column

public final String column

Name of the column. Unique within the table reference, but not necessarily within the lattice.

Method Detail

toString

public String toString()

Overrides:

toString in class Object

identifiers

public List<String> identifiers()

toSql

public void toSql(Lattice.SqlWriter writer)

Specified by:

toSql in class Lattice.Column

defaultAlias

public String defaultAlias()

Description copied from class: Lattice.Column

The alias that SQL would give to this expression.

Specified by:

defaultAlias in class Lattice.Column