fix

upgrade-202011/数据库变更.txt

@@ -53,6 +53,8 @@ INSERT INTO ec_b_role ( CODE, NAME, root_org_id, creation_time, update_time ) VA
 -------------------- 模块: oe-admin Start --------------------
 #网考异步导出
 alter table ec_oe_export_task add export_param varchar(500);
+alter table ec_oe_export_task add start_time datetime DEFAULT NULL;
+alter table ec_oe_export_task add end_time datetime DEFAULT NULL;
 
 -------------------- 模块: oe-admin End --------------------