hibernate在select中更改列名

Question

我有一个包含3个数据的表（节点） - id（pk） - 题 - 结果

和2个外键（多对一） - LEFT_ID - RIGHT_ID

这里是我的hbm

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
    <class name="com.beans.Nodes" table="node">
        <id name="id" type="int" access="field">
            <column name="id" />
            <generator class="assigned" />
        </id>
        <property name="question" type="java.lang.String">
            <column name="question" />
        </property>
        <property name="result" type="java.lang.String">
            <column name="result" />
        </property>


        <many-to-one column="LEFT_ID" name="left" class="com.beans.Nodes" insert="false" update="false"></many-to-one>
        <many-to-one column="RIGHT_ID" name="right" class="com.beans.Nodes" insert="false" update="false"></many-to-one>
    </class>
</hibernate-mapping>

和我的带有getter / setter的bean在LEFT / RIGHT_ID

@Entity
@Table (name = "node")
public class Nodes
{
    @Id
    @GeneratedValue (strategy = GenerationType.IDENTITY)
    @Column(name="id")
    private int id;

    @Column (name = "question")
    private String question;

    @Column ( name = "result")
    private String result;

    private Nodes LEFT_ID;

    private Nodes RIGHT_ID;


    public Nodes getLeftNodes()
    {
        return LEFT_ID;
    }

    public void setLeftNodes(Nodes LEFT_ID)
    {
        this.LEFT_ID=LEFT_ID;
    }

    public Nodes getRightNodes()
    {
        return RIGHT_ID;
    }

    public void setRifhtNodes(Nodes right)
    {
        this.RIGHT_ID=right;
    }
}

但是当我部署我的项目时，我有这个错误

**Query: ReadAllQuery(referenceClass=Nodes sql="SELECT id, question, result, LEFT_ID_id, RIGHT_ID_id FROM node")**

当hibernate是select时，他会更改列的名称。 LEFT_ID变为LEFT_ID_id，并且不可避免地找不到任何东西！

为什么hibernate会更改LEFT_ID列的名称？

感谢