cannot create table using pl/perl

Installed latest postgresql 8 on windows xp,
everything works fine with pl/pgsql; problems creating
a table with perl however:

CREATE OR REPLACE FUNCTION datetable() RETURNS integer
AS $$
CREATE TABLE tabletest
(
    dayofmonth int4,
    monthofyear int4,
    theyear int4
)
$$
LANGUAGE 'plperlu' ;

But now when I try to run this function using query:
select * from datetable();

ERROR:  error from Perl function: Can't locate object
method "dayofmonth" via package "int4" (perhaps you
forgot to load "int4"?) at line 3.

Any ideas appreciated.  :-)




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