Package org.apache.pig.piggybank.evaluation

Class Summary
ExtremalTupleByNthField This class is similar to MaxTupleBy1stField except that it allows you to specify with field to use (instead of just using 1st field) and to specify ascending or descending.
ExtremalTupleByNthField.HelperClass Utility classes and methods
IsDouble This UDF is used to check whether the String input is a Double.
IsFloat This UDF is used to check whether the String input is a Float.
IsInt This UDF is used to check whether the String input is an Integer.
IsLong This UDF is used to check whether the String input is a Long.
IsNumeric This UDF is used to check if a String is numeric.
MaxTupleBy1stField MaxTupleBy1stField UDF returns a tuple with max value of the first field in a given bag.
MaxTupleBy1stField.Final  
MaxTupleBy1stField.Initial  
MaxTupleBy1stField.Intermediate  
Over Given an aggregate function, a bag, and possibly a window definition, produce output that matches SQL OVER.
Stitch Given a set of bags, stitch them together tuple by tuple.
 



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