title: Redis large key space schema
body: <p>My application works by using SINTER, SDIFF and SUNION on different keys, (which contain one or more ids), to get a result. Now I need to add a new key to my database which is in the form of idx:cookie:[random_alphanumeric_string]. But this may have many random keys and it will be hard to maintain because of large number of keys (100K keys, maybe more).</p>
  
  <p>Is there a better way to store the keys, keeping in mind maintainability and how my app works.</p>