text: set @@sql_mode='';
  drop table if exists onlineddl_test;
  create table onlineddl_test (
    id int auto_increment,
    i int not null,
    dt datetime not null default '1970-00-00 00:00:00',
    primary key(id)
  ) auto_increment=1;
  
  drop event if exists onlineddl_test;
  delimiter ;;
  create event onlineddl_test
    on schedule every 1 second
    starts current_timestamp
    ends current_timestamp + interval 60 second
    on completion not preserve
    enable
    do
  begin
    insert into onlineddl_test values (null, 11, now());
    insert into onlineddl_test values (null, 13, now());
    insert into onlineddl_test values (null, 17, now());
  end ;;
  