title: Select one relations all fields & one or two from other relation on PIG JOIN, how?
body: <pre><code>A = load '$input1' using pigStorage() AS (a,b,c,d,e)
  B = load '$input2' using pigStorage() AS (a,b1,c1,d1,e1)
  C = JOIN A by a, B by a; 
  D = do something;
  </code></pre>
  
  <p>'D' should be of format (a,b,c,d,e,b1)</p>
  
  <p>How to achieve this?</p>