QueryDSL query translates full outer join to MySQL

I am doing a query with QueryDSL, but when the query is translated to MySQL, the resulting sql contains a full outer join and an exception is thrown

com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'full outer join ....

      

        
        
        
      

    

How can I tell QueryDSL not to generate full external join statements?