参考官方文档

create or replace function creatData2() returns
boolean AS
$BODY$
declare ii integer;
begin
II:=1;
FOR ii IN 1..10000000 LOOP
INSERT INTO ipm_model_history_data (res_model, res_id) VALUES (116, ii);
end loop;
return true;
end;
$BODY$
LANGUAGE plpgsql;
select * from creatData2() as tab;