create table if not exists training(
    id uuid primary key default gen_random_uuid(),
    owner varchar(255) not null,
    filename text not null,
    medium varchar(255) not null,
    description text not null,
    moving_time float not null,
    stopped_time float not null,
    moving_distance float not null,
    stopped_distance float not null,
    data jsonb not null default '{}'
);

create table if not exists training_data(
    training_id uuid not null,
    t timestamp with time zone not null,
    lat float not null,
    lon float not null,
    speed float not null,
    elevation float not null,
    constraint fk_training_id foreign key(training_id) references training(id) on delete cascade
);
create index if not exists idx_training_data_training_id on training_data(training_id);