-- 1.sql
create table prices (
    id integer generated always as identity
        primary key,
    price int not null
);

-- 2.sql
set local lock_timeout = '2s';
alter table prices
    add column new_price bigint;

-- 3.sql
update prices set new_price = price :: bigint;
set local lock_timeout = '2s';
alter table prices
    add constraint check_new_price_not_null
        check (new_price is not null) not valid;

-- 4.sql
set local lock_timeout = '2s';
alter table prices
    validate constraint check_new_price_not_null,
    drop column price;
-- eugene: ignore E4
-- this has to run in the same transaction as dropping the old price column
alter table prices
    rename column new_price to price;