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From "Sandy Ryza (JIRA)" <j...@apache.org>
Subject [jira] [Created] (PIG-3160) GFCross uses unnecessary loop
Date Tue, 05 Feb 2013 20:01:13 GMT
Sandy Ryza created PIG-3160:
-------------------------------

             Summary: GFCross uses unnecessary loop
                 Key: PIG-3160
                 URL: https://issues.apache.org/jira/browse/PIG-3160
             Project: Pig
          Issue Type: Improvement
          Components: internal-udfs
    Affects Versions: 0.10.0
            Reporter: Sandy Ryza


The GFCross UDF contains the following code:

{code}
int[] digits = new int[numInputs];
for (int i=0; i<numInputs; i++){
  if (i == myNumber){
    digits[i] = r.nextInt(numGroupsPerInput);
  }else{
    digits[i] = 0;
 }
}
{code}

As int arrays are initialized with all 0s already, this is equivalent to just settings digits[myNumber]
and leaving the rest alone.

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