错误：未知字符集：'ascii'

尝试从 .mysql 文件导入数据库时​​，出现错误：

ERROR 1115 (42000) at line 24: Unknown character set: 'ascii'

发生错误的部分来自使用 ASCII 的列：

`column` varchar(64) CHARACTER SET ascii NOT NULL

我签入/usr/share/mariadb/charsets/，ascii.xml 在那里。ASCII 也列在 Index.xml 中。但是，在查看数据库时，它不是：

MariaDB [db]> show character set;
+---------+------------------+---------------------+--------+
| Charset | Description      | Default collation   | Maxlen |
+---------+------------------+---------------------+--------+
| big5    |                  | big5_chinese_ci     |      2 |
| latin1  |                  | latin1_swedish_ci   |      1 |
| latin2  |                  | latin2_general_ci   |      1 |
| ujis    |                  | ujis_japanese_ci    |      3 |
| sjis    |                  | sjis_japanese_ci    |      2 |
| tis620  |                  | tis620_thai_ci      |      1 |
| euckr   |                  | euckr_korean_ci     |      2 |
| gb2312  |                  | gb2312_chinese_ci   |      2 |
| cp1250  |                  | cp1250_general_ci   |      1 |
| gbk     |                  | gbk_chinese_ci      |      2 |
| utf8    |                  | utf8_general_ci     |      3 |
| ucs2    |                  | ucs2_general_ci     |      2 |
| utf8mb4 | UTF-8 Unicode    | utf8mb4_general_ci  |      4 |
| utf16   | UTF-16 Unicode   | utf16_general_ci    |      4 |
| utf16le | UTF-16LE Unicode | utf16le_general_ci  |      4 |
| utf32   | UTF-32 Unicode   | utf32_general_ci    |      4 |
| binary  |                  | binary              |      1 |
| cp932   |                  | cp932_japanese_ci   |      2 |
| eucjpms |                  | eucjpms_japanese_ci |      3 |
+---------+------------------+---------------------+--------+
19 rows in set (0.000 sec)

在这一点上，我不知道出了什么问题，也不知道如何检测到 ASCII 字符集并使其正常工作。

我正在使用带有 tag的wodby/mariadbMARIADB_TAG=10.5-3.9.5。