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sequelize如何合并联表的字段?

我有一个doctor表以uid作为外键关联user表的id,这里需求是分页查询,然后拿到的数据只需要把user表的userName拿出来,请问大佬如何操作?sequelize默认会把user的表数据放在user对象里面,而我拿出来放到外面那层和doctor表的数据同级,raw好像不行而且操作完会是u.userName的字段名。。

DoctorModel.findAndCountAll({
      include: [
        {
          model: UserModel,
          as: 'u',
          attributes: ['userName'],
        },
      ],
      order: [["id", "DESC"]],
      where,
      offset: (curPage - 1) * pageSize,
      limit: pageSize
    });

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