title: SQL: Using alias of a column in a function in the same select statement
body: <p>I am just trying to simplify a Select statement:</p>
  
  <pre><code>Select (a+b+c)/3 AS V, MIN((a+b+c)/3) as Min, MAX((a+b+c)/3) as Max from ....
  </code></pre>
  
  <p>Is there a clean way to avoid repeating that formula (a+b+c)/3 in the aggregate functions?</p>