org.apache.flink.table.catalog

Class TableChange.ModifyColumnComment

java.lang.Object

org.apache.flink.table.catalog.TableChange.ModifyColumn

org.apache.flink.table.catalog.TableChange.ModifyColumnComment

All Implemented Interfaces:

TableChange

Enclosing interface:

TableChange

@PublicEvolving
public static class TableChange.ModifyColumnComment
extends TableChange.ModifyColumn

A table change to modify the column comment.

It is equal to the following statement:

    ALTER TABLE <table_name> MODIFY <column_name> <original_column_type> COMMENT '<new_column_comment>'
 

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.ColumnPosition, TableChange.DropColumn, TableChange.DropConstraint, TableChange.DropDistribution, TableChange.DropWatermark, TableChange.First, TableChange.MaterializedTableChange, TableChange.ModifyColumn, TableChange.ModifyColumnComment, TableChange.ModifyColumnName, TableChange.ModifyColumnPosition, TableChange.ModifyDistribution, TableChange.ModifyPhysicalColumnType, TableChange.ModifyRefreshHandler, TableChange.ModifyRefreshStatus, TableChange.ModifyUniqueConstraint, TableChange.ModifyWatermark, TableChange.ResetOption, TableChange.SetOption

Field Summary

Fields inherited from class org.apache.flink.table.catalog.TableChange.ModifyColumn

newColumn, newPosition, oldColumn

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object o)
String	getNewComment() Get the new comment for the column.
String	toString()

Methods inherited from class org.apache.flink.table.catalog.TableChange.ModifyColumn

getNewColumn, getNewPosition, getOldColumn, hashCode

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.flink.table.catalog.TableChange

add, add, add, add, add, dropColumn, dropConstraint, dropDistribution, dropWatermark, modify, modify, modify, modify, modifyColumnComment, modifyColumnName, modifyColumnPosition, modifyPhysicalColumnType, modifyRefreshHandler, modifyRefreshStatus, reset, set

Method Detail

getNewComment

public String getNewComment()

Get the new comment for the column.

equals

public boolean equals(Object o)

Overrides:

equals in class TableChange.ModifyColumn

toString

public String toString()

Overrides:

toString in class TableChange.ModifyColumn