time zone type functions are overloaded now
postgres=# select '1973-07-15 08:15:55.33+02'::timestamptz;
timestamptz
---------------------------
1973-07-15 07:15:55.33+01
(1 row)
postgres=# SELECT make_timestamptz(1973, 07, 15, 08, 15, 55.33, 2);
make_timestamptz
---------------------------
1973-07-15 07:15:55.33+01
(1 row)
postgres=# SELECT make_timestamptz(1973, 07, 15, 08, 15, 55.33);
make_timestamptz
---------------------------
1973-07-15 08:15:55.33+01
(1 row)