Hello
I tested head again from scratch with negative results:
http://www.pgsql.cz/data/regression.diffs
http://www.pgsql.cz/data/regression.out
Regards
Pavel Stehule
[pavel(at)nemesis pgsql]$ uname -a
Linux nemesis.nat.buk.cvut.cz 2.6.24.3-34.fc8 #1 SMP Wed Mar 12
18:17:20 EDT 2008 i686 i686 i386 GNU/Linux
[pavel(at)nemesis pgsql]$ cat /etc/redhat-release
Fedora release 8 (Werewolf)