title: how to manage millions/billions of small values in a "database"
body: <p>I have an application that will generate millions of date/type/value entries. we don't need to do complex queries, only for example get the average value per day of type X between date A and B.</p>
  
  <p>I'm sure a normal db like mysql isn't the best to handle these sort of things, is there a better system that like these sort of data.</p>
  
  <p><strong>EDIT</strong>: The goal is <em>not</em> to say that relational database cannot handle my problem but to know if another type of database like key/value database, nosql, document oriented, ... can be more adapted to what i want to do.</p>