Is PostgreSQL 9.3 using indexes for pipelined top-N window function queries?

Hi,

I just stumbled upon this article from 2012 [1], according to which
(emphasis mine):

Window functions offer yet another way to implement pagination in SQL. This
is a flexible, and above all, standards-compliant method. However, only SQL
Server and the Oracle database can use them for a pipelined top-N
query. *PostgreSQL
does not use indexes for those queries and therefore executes them very
inefficiently.* MySQL does not support window functions at all.

Is this still the case? Or is PostgreSQL 9.3 capable to execute suchlike
queries efficiently?

[1] http://use-the-index-luke.com/sql/partial-results/window-functions

Best regards,
Behrang Saeedzadeh