Comments - SHOW LOCALES

The query SHOW LOCALES fails when Locales plugin is not installed as shown bellow:

MariaDB [(none)]> SHOW LOCALES;
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your 
MariaDB server version for the right syntax to use near 'LOCALES' at line 1

And of course one may list all installed plugins using query SHOW PLUGINS query to see if the Locales plugin is missing/installed.

MariaDB [(none)]> SHOW PLUGINS;
+-------------------------------+----------+--------------------+-------------+---------+
| Name                          | Status   | Type               | Library     | License |
+-------------------------------+----------+--------------------+-------------+---------+
| binlog                        | ACTIVE   | STORAGE ENGINE     | NULL        | GPL     |
| mysql_native_password         | ACTIVE   | AUTHENTICATION     | NULL        | GPL     |
| mysql_old_password            | ACTIVE   | AUTHENTICATION     | NULL        | GPL     |
| CSV                           | ACTIVE   | STORAGE ENGINE     | NULL        | GPL     |
| MEMORY                        | ACTIVE   | STORAGE ENGINE     | NULL        | GPL     |
...