Package org.apache.flink.table.catalog

Class TableChange.AddColumn

java.lang.Object

org.apache.flink.table.catalog.TableChange.AddColumn

All Implemented Interfaces:

TableChange, TableChange.CatalogTableChange, TableChange.MaterializedTableChange

Enclosing interface:

TableChange

@PublicEvolving
public static class TableChange.AddColumn
extends Object
implements TableChange.CatalogTableChange, TableChange.MaterializedTableChange

A table change to add a column.

It is equal to the following statement:

    ALTER TABLE <table_name> ADD <column_definition> <column_position>
 

Note: An ALTER MATERIALIZED TABLE AS QUERY operation may also produce an AddColumn change. This occurs when the materialized table's schema is updated to align with the structure of the query results, which might require adding new columns.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.flink.table.catalog.TableChange

TableChange.AddColumn, TableChange.AddDistribution, TableChange.AddUniqueConstraint, TableChange.AddWatermark, TableChange.After, TableChange.CatalogTableChange, TableChange.ColumnPosition, TableChange.DropColumn, TableChange.DropConstraint, TableChange.DropDistribution, TableChange.DropWatermark, TableChange.First, TableChange.MaterializedTableChange, TableChange.ModifyColumn, TableChange.ModifyColumnComment, TableChange.ModifyColumnName, TableChange.ModifyColumnPosition, TableChange.ModifyDefinitionQuery, TableChange.ModifyDistribution, TableChange.ModifyPhysicalColumnType, TableChange.ModifyRefreshHandler, TableChange.ModifyRefreshStatus, TableChange.ModifyUniqueConstraint, TableChange.ModifyWatermark, TableChange.ResetOption, TableChange.SetOption

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object o)
Column	getColumn()
TableChange.ColumnPosition	getPosition()
int	hashCode()
String	toString()

Methods inherited from class java.lang.Object

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

Method Details

getColumn

public Column getColumn()

getPosition

@Nullable
public TableChange.ColumnPosition getPosition()

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object