diff --git a/doc/src/sgml/advanced.sgml b/doc/src/sgml/advanced.sgml
new file mode 100644
index 3c067d5..1e45511
*** a/doc/src/sgml/advanced.sgml
--- b/doc/src/sgml/advanced.sgml
*************** SELECT depname, empno, salary, avg(salar
*** 389,395 ****
      order in which the rows are output.)  Here is an example:
  
  <programlisting>
! SELECT depname, empno, salary, rank() OVER (PARTITION BY depname ORDER BY salary DESC) FROM empsalary;
  </programlisting>
  
  <screen>
--- 389,397 ----
      order in which the rows are output.)  Here is an example:
  
  <programlisting>
! SELECT depname, empno, salary,
!        rank() OVER (PARTITION BY depname ORDER BY salary DESC)
! FROM empsalary;
  </programlisting>
  
  <screen>