drop table t1;
create table t1(id1 integer, id2 integer, data text);
create or replace function setup151() returns void as $$
	declare
		s1 text;
		s2 text;
		s3 text;
	begin
		for i in 1..1000 loop
			for j in 1..100 loop
				if (i + j) % 2 = 0 then
					s1 := 'DATA';
				else
					s1 := 'data';
				end if;
				s2 := to_char(i, '_FM0000');
				s3 := to_char(j, '_FM000');
				insert into t1 values(i, j, s1 || s2 || s3);
			end loop;
		end loop;
		return;
	end;
$$ language plpgsql;
select setup151();