extractor search terms from referer
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                 Key: PIG-488
                 URL: https://issues.apache.org/jira/browse/PIG-488
             Project: Pig
          Issue Type: New Feature
            Reporter: Earl Cahill


Want to be able to extract search terms from a url. For example,

http://www.google.com/search?hl=en&safe=active&rls=GGLG,GGLG:2005-24,GGLG:en&q=purpose+of+life&btnG=Search
 
then

purpose of life

would be extracted.

Pig latin usage looks like

searchTerms = FOREACH row GENERATE 
org.apache.pig.piggybank.evaluation.util.apachelogparser.SearchTermExtractor(url);

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