drop table t1_int4;
create table t1_int4 (f1 int4  primary key);
insert into t1_int4 select generate_series(1, 255);
select * from t1_int4, generate_series(1, 10) as foo where t1_int4.f1 = foo;

drop table t1_uint4;
create table t1_uint4 (f1 uint4  primary key);
insert into t1_uint4 select generate_series(1, 255);
select * from t1_uint4, generate_series(1, 10) as foo where t1_uint4.f1 = foo;