title: Table gone after creating relations
body: <p>For the last three days, I have been creating quite some tables in MySQL, using PhpMyAdmin.</p>
  
  <p>For no apparent reason, when creating a relation from one indexed, unsigned field to an indexed, unsigned primary key in another table, I get the error 'MySQL has gone away'.
  Then, I refresh the page and my just created table is missing.</p>
  
  <p>Recreating the table is impossible in PhpMyAdmin, since it returns 'Table already exists'. In PhpMyAdmin alternative Adminer, I can recreate this table, but still get the same error when making a relation.</p>
  
  <p>I've checked everything in my knowledge. Datatypes are the same, MySQL doesn't run out of memory, there are not too many connections, it just 'goes away'. </p>
  
  <p>Does anybody have a clue?</p>