mysql查询结果多列拼接查询

SELECT
            r.id,b.NAME AS group_name,GROUP_CONCAT( a.`name` ) province_name
            FROM config_rule AS r
            LEFT JOIN group AS g ON ( r.svg_id = g.id )
            LEFT JOIN config_rule_detail AS rd ON ( r.id = rd.chat_config_rule_id )
            LEFT JOIN area AS a ON ( rd.province_id = a.id )
            WHERE r.company_id = 1 AND r.delete_flag = ‘N‘ AND rd.delete_flag = ‘N‘ and r.chat_mongo_id = ‘123456‘