请问各位大佬,我创建数据集预览可以显示数据,为啥把数据集中的字段拖到模板中预览模板就没有数据?预览模板没有报错,就是没有数据。语句如下SELECT count( member_id ), a.travel_city_id, b.employee_number , '+$fine_username+'FROM ( SELECT DISTINCT ( member_id ), travel_city_id FROM ads_brand_contact WHERE is_member = 1 AND date_format( now( ), '%Y-%m-%d' ) = substr( register_time, 1, 10 ) ) a JOIN dim_crm_poster_inviter_employee b ON a.travel_city_id = b.travel_city_id WHERE b.employee_number = '${fine_username}'GROUP BY a.travel_city_id, b.employee_number