Hibernate – @AttributeOverride does not use inheritance

I tried to change the column name in the subclass table, but it will not be changed using the @AttributeOverride annotation .

@Entity @Table(name="emp")
@Inheritance(strategy=InheritanceType.TABLE_PER_CLASS)
public class Employee { 
 @Id @GeneratedValue(strategy=GenerationType.AUTO)
 protected int id;
 protected String name;
 public int getId() {
 return id;
 }
 public void setId(int id) {
 this.id = id;
 }
 public String getName() {
 return name;
 }
 public void setName(String name) {
 this.name = name;
 }

}

@Entity
@Table(name="RegularEmployee")
@AttributeOverrides({
@AttributeOverride(name="id", column=@Column(name="REGID")),
@ AttributeOverride(name="name", column=@Column(name="REGNAME"))
})
public class RegularEmployee extends Employee {
 private int salary;
 public int getSalary() {
 re turn salary;
 }
 public void setSalary(int salary) {
 this.salary = salary;
 }
}

but created The table structure is:

Employees:

CREATE TABLE EMP
(
 ID NUMBER(10) NOT NULL,
 NAME VARCHAR2(255 CHAR)
)

RegularEmployee:

CREATE TABLE REGULAREMPLOYEE
(
 ID NUMBER( 10) NOT NULL,
 NAME VARCHAR2(255 CHAR),
 SALARY NUMBER(10) NOT NULL
)

It helps to read the JavaDoc of @AttributeOverride:

May be applied to an entity that extends a mapped superclass or to an embedded field or property to override a basic mapping or id mapping defined by the mapped superclass or embeddable class (or embeddable class of one of its attributes).

When you use InheritanceType.TABLE_PER_CLASS, you only need to switch to Employee @MappedSuperclass is fine. If you still need the EMP table, you can inherit the second class from this superclass.