create database '㊙️database';

Error: 1002(Unexpected), Unexpected, violated: Invalid database name: ㊙️database

create database illegal-database;

Error: 1001(Unsupported), SQL statement is not supported: create database illegal-database;, keyword: -

create database 'illegal-database';

Affected Rows: 1

create database mydb with (ttl = '1h');

Affected Rows: 1

show databases;

+--------------------+
| Database           |
+--------------------+
| greptime_private   |
| illegal-database   |
| information_schema |
| mydb               |
| public             |
+--------------------+

drop database 'illegal-database';

Affected Rows: 0

drop database mydb;

Affected Rows: 0