title: hadoop pig - loading float with commas
body: <p>I have a csv file  full of float numbers encoded with a comma rather than a dot.
  I made a pig loading script precising the float type, but when reading the comma, pig can"t convert that to a float (he expect float to have dots). </p>
  
  <p>How could I change the commas by dot in the loading phase ? 
  I understand a UDF could make the trick, but is there another simpler way ?</p>
  
  <p>Thanks.</p>