Fix #1765 (#1767)

Co-authored-by: anqiansong <anqiansong@bytedance.com>

tools/goctl/model/sql/example/sql/user.sql

@@ -21,7 +21,7 @@ CREATE TABLE `user`
 
 CREATE TABLE `student`
 (
-    `id`    bigint                           NOT NULL,
+    `type`    bigint                           NOT NULL,
     `class` varchar(255) COLLATE utf8mb4_bin NOT NULL DEFAULT '',
     `name`  varchar(255) COLLATE utf8mb4_bin NOT NULL DEFAULT '',
     `age`   tinyint                                   DEFAULT NULL,
@@ -29,6 +29,6 @@ CREATE TABLE `student`
 ) DEFAULT NULL,
   `create_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
   `update_time` timestamp NULL DEFAULT NULL,
-  PRIMARY KEY (`id`) USING BTREE,
+  PRIMARY KEY (`type`) USING BTREE,
   UNIQUE KEY `class_name_index` (`class`,`name`)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin;