a.id,a.voltage_class,a.owning_interval, a.identification_interval,a.device_name,a.device_type, a.meter_code,a.meter_name,a.camera_id, a.type_id,a.status,a.first_time, a.algorithm_type,a.interval_time,a.focal_number, a.parameter_config,a.remarks,a.init_status,a.create_user, a.create_time,a.update_user,a.update_time, select b.device_type cameraType,b.position cameraName,c.type_alias,b.device_ip ip from meter_config a left join device_camera b on a.camera_id = b.id left join meter_type c on a.type_id=c.id left join substation d on a.station_id = d.id ${ew.customSqlSegment}