我使用springboot2.3.3和springdatajdbc2.0.3来建模to元素和classtype之间的关系。吉他有类型。
我在h2中的模式（也在mysql中）是这样的：

CREATE TABLE class_type (
    id bigint NOT NULL AUTO_INCREMENT,
    description varchar(50) NOT NULL
    PRIMARY KEY (id)
);

CREATE TABLE guitars (
    id bigint NOT NULL AUTO_INCREMENT,
    name varchar(255) NOT NULL,
    description varchar(1000) NOT NULL,
    classType bigint NOT NULL,
    PRIMARY KEY (id),
    UNIQUE (name),
    FOREIGN KEY (classType) references class_type(id)
);

我有这些课程：

@Data
@NoArgsConstructor
@AllArgsConstructor
@Builder
@Table(value = "guitars")
public class Guitar {
    @Id
    long id;
    String name;
    String description;
    @MappedCollection(idColumn = "id")
    @Column(value = "classType")
    ClassType classType;
}

@Data
@NoArgsConstructor
@AllArgsConstructor
@Builder
@Table(value = "class_type")
public class ClassType {
    @Id
    Long id;
    String description;    
}

我的存储库是这样的：

@Repository
public interface GuitarRepository extends CrudRepository<Guitar, Long>, PagingAndSortingRepository<Guitar, Long> {}

当我调用此测试时：

@SpringBootTest
public class GuitarOneManyTest {

    @Autowired
    GuitarRepository guitarRepository;

    @Test
    void findAllByName() {
        System.out.println(guitarRepository.findAll());
    }
}

这个句子的左外连接不正确

SELECT `guitars`.`id` AS `id`, `guitars`.`name` AS `name`, `guitars`.`description` AS `description`, `classType`.`id` AS `classType_id`, `classType`.`description` AS `classType_description` FROM `guitars` LEFT OUTER JOIN `class_type` AS `classType` ON `classType`.`id` = `guitars`.`id`

但我希望选择是这样的：

SELECT (...) FROM `guitars` LEFT OUTER JOIN `class_type` AS `classType` ON `classType`.`id` = `guitars`.`classType`

我错过什么了吗？