数字林业可视化接口

src/main/resources/mapper/digitalforest/ForestViewNewMapper.xml

@@ -264,7 +264,7 @@
             a.`name` NAME,
             a.`level` LEVEL,
             a.parent_id parentId,
-            b.num num
+            IFNULL(b.num,0) num
         FROM
             centerdata_t_forest_dict a
             LEFT JOIN (