title: MySQL: Is there a lack of performance by using LONGTEXT instead of MEDIUMTEXT?
body: <p>I know the principle of using the smallest data type possible, but I wonder why this would apply to TEXT / MEDIUMTEXT / LONGTEXT in MySQL? Is there a performance issue if I use LONGTEXT instead of MEDIUMTEXT?
  I've found the question <a href="https://stackoverflow.com/questions/7314682/what-is-the-disadvantage-to-using-a-mysql-longtext-sized-field-when-every-entry">What is the disadvantage to using a MySQL longtext sized field when every entry will fit within a mediumtext sized field?
  </a> but I think this doesn't is the answer to the performance question?</p>
  
  <p>Is it just a matter of a bit more storage for LONGTEXT?</p>
  
  <p>When should I prefer MEDIUMTEXT to LONGTEXT?</p>