Repeated column in mapping for entity: com.pc.bean.Video column: resource_id     <id name="id" type="long" column="resource_id"> 
          <meta attribute="scope-set">protected </meta> 
          <generator class="native"/> 
    </id>    <many-to-one 
        name="rc" 
        class="com.pc.bean.ResourceContainer" 
        cascade="save-update"> 
        <column name="resource_id"/> 
    </many-to-one>