在eclipse中从实体生成表并不会将auto_increment属性添加到主键

Question

当我尝试使用＆＃34;从实体＆＃34;生成表时从实体创建表时，它会创建表，但不会将属性auto_increment添加到主键。

以下是一个示例实体：

@Entity
public class Post implements java.io.Serializable {

private static final long serialVersionUID = -665356579933050521L;

@Id
@GeneratedValue(strategy=GenerationType.AUTO)
private Long postID;

@ManyToOne(optional=false)
@JoinColumn(name = "postOwnerID", referencedColumnName = "userID", insertable = false, updatable = false)
private UserCredential postOwner;

@ManyToOne(optional=false)
@JoinColumn(name="postType", referencedColumnName="postType", nullable=false)
private PostTypeEnum postType;

@ManyToOne(optional=true)
@JoinColumn(name="postEvent", referencedColumnName="eventID", nullable=true)
private Event postEvent;

@Column(nullable=false)
@Embedded
private AuditTrail auditTrail;

@OneToMany(cascade=CascadeType.ALL)
private Set<Message> postMessages;

public Post(){
}

}

更新 我尝试使用alter table sql query更改表格帖子，我发现以下错误：

ERROR 1833 (HY000): Cannot change column 'POSTID': used in a foreign key constraint 'FK_POSTRECIPIENT_postID' of table 'class_register.postrecipient'