Silent insert lack

Luca Saccarola (l(dot)saccarola(at)bigfoot(dot)com) reports a bug with a severity of 2
The lower the number the more severe it is.

Short Description
Silent insert lack

Long Description
'insert' statement using a view seems to be accepted with no error message:

MyDB=> insert into test_u (col1, col2) values ('1', '1');
INSERT 50371 1

but any following 'select' statements reports an empty table:

MyDB=> select * from test_pt;
col1 | col2
------+------
{0 rows)

My environment is PostgreSQL v7.0.3 on Linux 2.2.16 (Red Hat 7.0).

Sample Code
*** using psql:

create table test_pt (col1 varchar(20), col2 varchar(20));
create view test_u as select t1.col1, t1.col2 from test_pt t1;
insert into test_u (col1, col2) values ('1', '1');
select * from test_pt;

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