优化查询上下行相机接口

zc-business/src/main/resources/mapper/business/DcDeviceMapper.xml

@@ -125,9 +125,9 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
         select t1.id, t1.iot_device_id, t1.group_id, t1.product_id, t1.stake_mark, t1.direction, t1.device_name,
             t1.device_code, t1.device_type,t1.installation_Date,t1.production_date,t1.durable_years,t1.installation_site,
             t1.use_state,t1.device_state,t1.other_config,t1.remark,t1.create_time,t1.update_time,t1.facilities_type,
-            t1.device_ip,t1.stake_mark_range,t1.network_segment,t1.device_img,t1.child_type,t1.facilities_type,t2.longitude,t2.latitude
+            t1.device_ip,t1.stake_mark_range,t1.network_segment,t1.device_img,t1.child_type,t1.facilities_type,t1.longitude,t1.latitude
         from dc_device t1
-        left join dc_stake_mark t2 on t1.stake_mark = t2.stake_mark and t1.direction = t2.direction
+        left join (select * from dc_stake_mark GROUP BY stake_mark) t2 on t1.stake_mark = t2.stake_mark
         where  !ISNULL(t1.iot_device_id) and t1.device_type = '1' and t1.direction = #{direction}
             and t2.mileage >= #{startMileage} and t2.mileage <= #{endMileage}
     </select>