lineage/ruoyi-system/src/main/resources/mapper/app/TbPublishThumbsMapper.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.ruoyi.app.mapper.TbPublishThumbsMapper">
    
    <resultMap type="TbPublishThumbs" id="TbPublishThumbsResult">
        <result property="id"    column="id"    />
        <result property="publishId"    column="publish_id"    />
        <result property="appUserId"    column="app_user_id"    />
        <result property="createBy"    column="create_by"    />
        <result property="createTime"    column="create_time"    />
        <result property="updateBy"    column="update_by"    />
        <result property="updateTime"    column="update_time"    />
        <result property="remark"    column="remark"    />
    </resultMap>

    <select id="selectAll" resultType="com.ruoyi.app.domain.TbPublishThumbs">
        select t.*,(select nick_name from tb_app_user u where u.id = t.app_user_id) appUserName
        from tb_publish_thumbs t ${ew.customSqlSegment}
    </select>
</mapper>