load store filter foreach order arrange distinct cogroup join cross union onschema split into if all any as by using inner outer parallel group continuously window tuples generate eval define input output ship cache stream through seconds minutes hours asc desc null left right full cat cd cp copyFromLocal copyToLocal define dump illustrate describe explain help kill ls mv mkdir pwd quit register rm set chararray bytearray int long float double tuple bag map and is not or eq neq gt lt gte lte matches flatten sum count min max avg arity tokenize diff size concat BinStorage PigStorage TextLoader PigDump IsEmpty