Bruce Momjian <bruce(at)momjian(dot)us> writes:
> Added to TODO:
> * Avoid tuple some tuple copying in sort routines
> http://archives.postgresql.org/pgsql-hackers/2008-02/msg01206.php
Actually ... isn't this done already?
http://archives.postgresql.org/pgsql-patches/2008-02/msg00176.php
regards, tom lane