Problem in creating a table

Hi Gurus,

When I try to create a table by a script I get a error as follows,
#####################################################
[postgres@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