Caused by: java.sql.SQLSyntaxErrorException: Table 'sell.hibernate_sequence' doesn't exist

數據表：

create table 'product_category'(
    'category_id' int not null auto_increment,
    'category_name' varchar(64) not null comment '類目名字',
    ......　　

domain:　　　　

@Entity
public class ProductCategory {
   @Id
   @GeneratedValue
   private Integer categoryId;
   private String categoryName;
   private Integer categoryType;
    setter... 
    getter...

Repository:

public interface ProductCategoryRepository extends JpaRepository<ProductCategory,Integer> {

}

測試代碼：

@Test
    public void saveTest(){
        ProductCategory productCategory = new ProductCategory();
        productCategory.setCategoryName("測試b");
        productCategory.setCategoryType(3);
        repository.save(productCategory);
    }

報錯：Caused by: java.sql.SQLSyntaxErrorException: Table 'sell.hibernate_sequence' doesn't exist

解決：在domain實體類指明主鍵生成策略，保持數據庫一致

@Entity
public class ProductCategory {
   @Id
   @GeneratedValue(strategy = GenerationType.IDENTITY)
   private Integer categoryId;
   private String categoryName;
   private Integer categoryType;

JPA四種生成策略了解下。

疑點：原文使用@GeneratedValue注解，即@GeneratedValue(strategy = GenerationType.AUTO)，不是應該根據數據庫支持的主鍵生成策略自動選擇合適的嗎，數據庫中使用了auto_increment，為什么這邊沒有支持而報錯?