drop table if exists t1_int4;
create table t1_int4 (f1 int4  primary key);
insert into t1_int4 select generate_series(1, 255);
analyze;
select * from t1_int4 where f1 > 30;

drop table if exists t1_uint4;
create table t1_uint4 (f1 uint4  primary key);
insert into t1_uint4 select generate_series(1, 255);
analyze;
select * from t1_uint4 where f1 > 30;
explain analyze select * from t1_uint4 where f1 > 30;