[migration][新增]:flyway java migration 修改

mallinkAdmin/src/main/java/com/iformall/migration/V201904271650__Update_User_Role.java

@@ -18,7 +18,9 @@ public class V201904271650__Update_User_Role extends BaseJavaMigration {
 
     public void migrate(Context context) throws Exception {
         // 获取 tenantId list
-        // 获取 mall_user_role
+        // 获取 现有的 mall_user_role
+        // 删除已有的用户role
+        // 添加所有的权限到数据库
         /*
         try (Statement select = context.getConnection().createStatement()) {
             try (ResultSet rows = select.executeQuery(getTenantIdList)) {