tition.
     <a href="#ftn.id-1.4.5.6.9.5" class="footnote"><sup class="footnote" id="id-1.4.5.6.9.5">[5]</sup></a>
    Here is an example using <code class="function">sum</code>:
   </p><pre class="programlisting">
SELECT salary, sum(salary) OVER () FROM empsalary;
</pre><pre class="screen">
 salary |  sum
--------+-------
   5200 | 47100
   5000 | 47100
   3500 | 47100
   4800 | 47100
   3900 | 47100
   4200 | 47100
   4500 | 47100
   4800 | 47100
   6000 | 47100
   5200 | 47100
(10 rows)
</pre><p>
    Ab