text: create table if not exists users (
      id uuid primary key ,
      email varchar not null unique ,
      phone_number varchar not null unique
  );
  
  create table if not exists purchases (
      id uuid primary key ,
      user_id uuid not null references users(id),
      goods text not null ,
      total_price numeric(20, 2)  not null
  );
  
  create table if not exists logs (
      id uuid primary key ,
      error text not null
  )