高速运行快报

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

@@ -456,7 +456,7 @@
             UNION ALL select 5 control_cause,'' cause_type,'警备任务' controlCauseName,'警备任务' causeTypeName
             UNION ALL select 6 control_cause,'' cause_type,'其他' controlCauseName,'其他' causeTypeName) t3
         LEFT JOIN
-            (select t2.control_type,t2.control_cause,t2.cause_type,count(*) num
+            (select t2.control_type,t2.control_cause,IFNULL(t2.cause_type,'') cause_type,count(*) num
             from dc_event t1 LEFT JOIN dc_event_traffic_control t2 on t1.id = t2.id
             where
             t1.event_type = '3' and t1.event_subclass = '3-2'  and 	t2.control_type = #{controlType}