ctly how the
    rows of the query are split up for processing by the window function.
    The <code class="literal">PARTITION BY</code> clause within <code class="literal">OVER</code>
    divides the rows into groups, or partitions, that share the same
    values of the <code class="literal">PARTITION BY</code> expression(s).  For each row,
    the window function is computed across the rows that fall into the
    same partition as the current row.
   </p><p>
    You can also control the order in which row