title: Use a table-valued function in a SELECT column list?
body: <p>I <a href="https://stackoverflow.com/questions/6953417/how-to-execute-table-valued-function">understand</a> that a table-valued function is designed to appear in the <code>FROM</code> clause, but is there a way to include it in the column list, viz:</p>
  
  <pre><code>SELECT
   x.a,
   x.b,
   FN(x.c),
   x.d
  FROM x;
  </code></pre>
  
  <p>... where the expected output might be something like the following?</p>
  
  <pre><code>|x.a|x.b|fn_col_1|fn_col_2|fn_col_3|x.d|
  </code></pre>