title: Is there a FIND_IN_SET by index in MySQL?
body: <p>I know storing lists as strings is not wise, but I have to deal with that to export some data stored that way. I also know the <code>FIND_IN_SET</code> function, which returns the index of a certain string in a list:</p>
  
  <pre><code>SELECT FIND_IN_SET('bar', 'foo,bar,baz');
  -- selects 2
  </code></pre>
  
  <p>Is there any built-in function (or combination of functions) to get the string in a particular index of the list? I'm looking for something like this:</p>
  
  <pre><code>SELECT IN_SET_AT_INDEX(2, 'foo,bar,baz');
  -- selects 'bar'
  </code></pre>
  
  <p>I'd like to avoid a split-like function that makes the list a separate table, if possible.</p>