add sql/queryChildrenAreaInfo.sql 增加子企业查询SQL函数修复bug，该函数需使用数据库root账号在数据库直接运行

sql/queryChildrenAreaInfo.sql

@@ -0,0 +1,19 @@
+set global log_bin_trust_function_creators=TRUE;
+
+CREATE DEFINER=`root`@`%` FUNCTION `queryChildrenAreaInfo`(
+`username_set` char(50) charset utf8mb4 collate utf8mb4_0900_ai_ci ) RETURNS varchar(16383) CHARSET utf8
+    SQL SECURITY INVOKER
+BEGIN
+
+DECLARE sTemp VARCHAR(16383);
+DECLARE sTempChd VARCHAR(16383);
+
+SET sTemp="";
+SET sTempChd = CAST(username_set AS CHAR);
+
+WHILE sTempChd IS NOT NULL DO
+SET sTemp= CONCAT(sTemp,",",sTempChd);
+SELECT GROUP_CONCAT(dept_id) INTO sTempChd FROM sys_dept WHERE FIND_IN_SET(parent_id,sTempChd)>0;
+END WHILE;
+RETURN sTemp;
+END