title: JOIN queries vs multiple queries
body: <p>Are JOIN queries faster than several queries? (You run your main query, and then you run many other SELECTs based on the results from your main query)</p>
  
  <p>I'm asking because JOINing them would complicate A LOT the design of my application</p>
  
  <p>If they are faster, can anyone approximate very roughly by how much? If it's 1.5x I don't care, but if it's 10x I guess I do.</p>