title: soql select individual CaseComment with all its FeedComments
body: <p>I am trying to select all comments ,feeds and feedcomments for an individual case.
  The hierarchy is like</p>
  
  <pre><code>Case
      |
       CaseComment
                  |
                   FeedComments(commnets or feeds under a CaseComment)
  </code></pre>
  
  <p>I could not find any relation between <code>CaseComments</code> and <code>FeedComments</code> nor <code>CaseComments</code> and <code>CaseFeeds</code>.
  How can I select all together in a <code>soql</code> or individual <code>soqls</code> which relates <code>Case, CaseComment,CaseFeed,FeedComment</code>?</p>
  
  <p><img src="https://i.stack.imgur.com/dUGge.png" alt="enter image description here"></p>