Problem in creating a table

Hi Gurus,

When I try to create a table by a script I get a error as follows,
#####################################################
[postgres(at)demo pgsql]$ psql -d postgres -e -f /opt/rapisa/sql/TD_ACCESSCOUNT.sql

CREATE TABLE TD_ACCESSCOUNT(
AC_YEAR NUMBER(4,0) NOT NULL,
AC_MONTH NUMBER(2,0) NOT NULL,
AC_DAYS NUMBER(2,0) NOT NULL,
OFFICE_ID VARCHAR2(7) NOT NULL,
AC_COUNT NUMBER(6,0) DEFAULT 0,
PRIMARY KEY("AC_YEAR","AC_MONTH","AC_DAYS","OFFICE_ID")
)
TABLESPACE RAPIS;
psql:/opt/rapisa/sql/TD_ACCESSCOUNT.sql:14: ERROR: syntax error at or near "(" at character 52
#####################################################

I really don't know what is wrong with it and do appreciate it if anyone would
point out it. The version of Postgresql is 7.4.7.
Thanks in advance.

--Wen