create table if not exists shortlinks (
    id int generated always as identity,
    url text not null,
    expires_at timestamp not null,
    created_at timestamp,
    updated_at timestamp

create or replace trigger trg_shortlink_created
    before insert on shortlinks
    for each row
    when new is distinct from old
    execute function trg_proc_row_created();

create or replace trigger trg_shortlink_updated
    before update on shortlinks
    for each row when new is distinct from old
    execute function trg_proc_row_updated();