DOes PostgreSQL support UInt64?

Hi
Does anyone know if Postgres supports UInt64. The
document says postgres supports bigint(which
corresponds to Int64), but I am not sure if it
supports Unsigned int 64. Also when i tried doing a
create table table1(name varchar(20), num bigint), i
get an error message which says
"ERROR:  Unable to locate type name 'bigint' in
catalog".
 And the postgres doc says "The bigint type may not be
available on all platforms since it relies on compiler
support for eight-byte integers"
Could someone please explain.
Also i would like to know where to look for a mapping
between SQL_Binary and a corresponding data type in
postgres.
COuld someone help!
thanks
Meenatchi

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