title: Cannot create NVARCHAR column in MariaDb/Mysql
body: <p>I'm using MariaDb server (Ver 15.1 Distrib 10.2.7-MariaDB).
  When I execute</p>
  
  <pre><code>CREATE TABLE `my_table` (
     `id` INT NOT NULL,
     `name` NVARCHAR(64) NULL,
     PRIMARY KEY (`id`)
  );
  </code></pre>
  
  <p>Describe output:</p>
  
  <pre><code>MariaDB [db]&gt; describe my_table;
  +-------+-------------+------+-----+---------+-------+
  | Field | Type        | Null | Key | Default | Extra |
  +-------+-------------+------+-----+---------+-------+
  | id    | int(11)     | NO   | PRI | NULL    |       |
  | name  | varchar(64) | YES  |     | NULL    |       |
  +-------+-------------+------+-----+---------+-------+
  2 rows in set (0.00 sec)
  </code></pre>
  
  <p>Why there is no error, and "name" column datatype is varchar (not nvarchar)?</p>
  
  <p>db schema details:</p>
  
  <pre><code>Default collation: utf8_general_ci
  Default characterset: utf8
  </code></pre>