datafu.pig.bags
Classes 
AppendToBag
BagConcat
BagGroup
BagLeftOuterJoin
BagSplit
CountEach
DistinctBy
EmptyBagToNull
EmptyBagToNullFields
Enumerate
FirstTupleFromBag
NullToEmptyBag
PrependToBag
ReverseEnumerate
UnorderedPairs