我有一个问题更新枚举字段在我的postgres数据库从枚举在我的java实体使用hibernate导致标题中的错误。
我的数据库看起来像这样

\dT fulfillment_status
            List of data types
 Schema |        Name        | Description 
--------+--------------------+-------------
 public | fulfillment_status | 
(1 row)

这将设置特定列fulfillment_status i的类型。e.

Column           |              Type              | Collation | Nullable |               Default                
----------------------------+--------------------------------+-----------+----------+--------------------------------------

fulfillment_status         | fulfillment_status             |           | not null |

java实体类的相关部分

@Entity
@Table(name = "payments", uniqueConstraints = { @UniqueConstraint(columnNames = {"id"})})
public class Payment {
 private FulfillmentStatus fulfillmentStatus;

public enum FulfillmentStatus {
        PENDING, FULFILLED, FAILED, ABORTED
    }

@Enumerated(EnumType.STRING)
    @Column(name = "fulfillment_status", nullable = false, columnDefinition = "enum('PENDING', 'FULFILLED', 'FAILED', 'ABORTED')")
    public FulfillmentStatus getFulfillmentStatus() {
        return fulfillmentStatus;
    }

    public void setFulfillmentStatus(FulfillmentStatus fulfillmentStatus) {
        this.fulfillmentStatus = fulfillmentStatus;
    }

以及用于更新类的代码

Session session = sessionFactory.getCurrentSession();
        session.beginTransaction();
        CriteriaBuilder builder = session.getCriteriaBuilder();
        CriteriaUpdate<Payment> update = 
        builder.createCriteriaUpdate(Payment.class);
        Root root = update.from(Payment.class);
        update.set(root.get("fulfillmentStatus"), 
        Payment.FulfillmentStatus.FULFILLED);
        update.where(builder.equal(root.get("requestID"), UUID.fromString(requestID)));
        session.createQuery(update).executeUpdate();
        session.getTransaction().commit();
        session.close();

这将生成错误

Hibernate: 
    update
        payments 
    set
        fulfillment_status=?
2018-05-02 08:54:11 WARN  SqlExceptionHelper:129 - SQL Error: 0, SQLState: 42804
2018-05-02 08:54:11 ERROR SqlExceptionHelper:131 - ERROR: column "fulfillment_status" is of type fulfillment_status but expression is of type character varying
  Hint: You will need to rewrite or cast the expression.
  Position: 40

这里的问题似乎是如何使用CriteriaUpdate将java枚举类型Map到postgres枚举类型。..希望不会创建额外的Map类。