Hadoop PIG Part II

Topics 

  • JOIN operator 
  • Inner JOIN 
  • Outer JOIN 
  • COGROUP 
  • UNION, SPLIT, CROSS

JOIN Operator 

  • Used when two data sets are used together 
    • Joined through common “join key” 
  • PIG supports 
    • Inner Join (default) 
    • Outer Join
      • Left Outer Join 
      • Right Outer Join 
      • Full Outer Join

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