[Pig Wiki] Update of "PigStagificationAndMRInfrastructure" by Shravan Narayanamurthy

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The following page has been changed by Shravan Narayanamurthy:
http://wiki.apache.org/pig/PigStagificationAndMRInfrastructure

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  F = foreach E generate group, count(C), count(D);
  }}}
  
+ attachment:stage.png
+