title: How to deal with multiple STORES in Pig-Latin Script
body: <p>I have a pig script with input like this :</p>
  
  <p>| Col A | Col B | Col C | Col D | Col E |</p>
  
  <p>I have relations like these grouping by various columns:</p>
  
  <p>X = Col A | Sum Col C | Sum Col D|</p>
  
  <p>Y = Col B | Sum Col D | Sum Col E|</p>
  
  <p>Z = ...</p>
  
  <p>ETC</p>
  
  <p>I need to then store X, Y, Z into different folders and thus would be calling STORE multiple times. Does Pig know how to load and process the data only once and then do the stores?</p>