title: Difference between CONVERT TO and just resetting the CHARSET?
body: <p>Just wondering what is the difference in the below when running them on an existing table:</p>
  
  <pre><code>ALTER TABLE my_table CONVERT TO CHARACTER SET utf8, COLLATE=utf8_unicode_ci
  </code></pre>
  
  <p>...and</p>
  
  <pre><code>ALTER TABLE my_table CHARSET=utf8, COLLATE=utf8_unicode_ci
  </code></pre>
  
  <p>Like when changing the table charset wouldn't it be converted anyway?</p>