CHARACTER_SETS
CHARACTER_SETS 提供了 GreptimeDB 支持的可用字符集。
sql
USE INFORMATION_SCHEMA;
SELECT * FROM CHARACTER_SETS;USE INFORMATION_SCHEMA;
SELECT * FROM CHARACTER_SETS;结果如下：
sql
+--------------------+----------------------+---------------+--------+
| character_set_name | default_collate_name | description | maxlen |
+--------------------+----------------------+---------------+--------+
| utf8 | utf8_bin | UTF-8 Unicode | 4 |
+--------------------+----------------------+---------------+--------++--------------------+----------------------+---------------+--------+
| character_set_name | default_collate_name | description | maxlen |
+--------------------+----------------------+---------------+--------+
| utf8 | utf8_bin | UTF-8 Unicode | 4 |
+--------------------+----------------------+---------------+--------+结果中的列：
character_set_name：字符集的名称。default_collate_name：字符集的默认排序规则名称。description：字符集的描述。MAXLEN：存储一个字符所需的最大字节数。