I can't execute an SQL query!

[pigpog]

I'm trying to execute SQL queries, but it says I'm not authorized. I have done the following:

1. Added my username to the part of the config.php file shown below and uploaded.

PHP Code:

    //    ****** USERS WITH QUERY RUNNING PERMISSIONS ****** 
    //    The users specified here will be allowed to run queries from the control panel. 
    //    See the above entries for more information on the format. 
    //    Please note that the ability to run queries is quite powerful. You may wish 
    //    to remove all user IDs from this list for security reasons. 
$config['SpecialUsers']['canrunqueries'] = 'my username here'; 


2. Altered the letters in my username in the above part of the config.php file just in case it was case sensitive.

3. Double checked I'm a super administrator (which I am).

And still it won't let me execute an SQL query.