Re: 特定の？文字では、記事編集画面にある「新しいカテゴリを追加」ボタンより日本語カテゴリを登録すると、リンクで辿れないカテゴリとなってしまう

mysql> describe mysite_pg_blog_categories;

+-----------------+-------------+------+-----+---------+----------------+
| Field           | Type        | Null | Key | Default | Extra          |
+-----------------+-------------+------+-----+---------+----------------+
| id              | int(8)      | NO   | PRI | NULL    | auto_increment |
| blog_content_id | int(8)      | NO   |     | NULL    |                |
| no              | int(8)      | NO   |     | NULL    |                |
| name            | varchar(50) | YES  |     | NULL    |                |
| title           | varchar(50) | YES  |     | NULL    |                |
| status          | int(2)      | YES  |     | NULL    |                |
| parent_id       | int(8)      | YES  |     | NULL    |                |
| lft             | int(8)      | YES  |     | NULL    |                |
| rght            | int(8)      | YES  |     | NULL    |                |
| owner_id        | int(8)      | YES  |     | NULL    |                |
| created         | datetime    | YES  |     | NULL    |                |
| modified        | datetime    | YES  |     | NULL    |                |
+-----------------+-------------+------+-----+---------+----------------+

BEGIN;
ALTER TABLE mysite_pg_blog_categories MODIFY name varchar(500);
COMMIT;

mysql> describe mysite_pg_blog_categories;

+-----------------+--------------+------+-----+---------+----------------+
| Field           | Type         | Null | Key | Default | Extra          |
+-----------------+--------------+------+-----+---------+----------------+
| id              | int(8)       | NO   | PRI | NULL    | auto_increment |
| blog_content_id | int(8)       | NO   |     | NULL    |                |
| no              | int(8)       | NO   |     | NULL    |                |
| name            | varchar(500) | YES  |     | NULL    |                |
| title           | varchar(50)  | YES  |     | NULL    |                |
| status          | int(2)       | YES  |     | NULL    |                |
| parent_id       | int(8)       | YES  |     | NULL    |                |
| lft             | int(8)       | YES  |     | NULL    |                |
| rght            | int(8)       | YES  |     | NULL    |                |
| owner_id        | int(8)       | YES  |     | NULL    |                |
| created         | datetime     | YES  |     | NULL    |                |
| modified        | datetime     | YES  |     | NULL    |                |
+-----------------+--------------+------+-----+---------+----------------+
12 rows in set (0.00 sec)