Package org.apache.pig.impl.builtin

Class Summary

DefaultIndexableLoader	Used by MergeJoin .
FindQuantiles
GetMemNumRows	UDF to get memory size of a tuple and extracts number of rows value from special tuple created by PoissonSampleLoader It is used by skewed join.
GFAny	built-in grouping function; permits system to choose any grouping.
GFCross
GFReplicate
IdentityColumn	Returns the input, used by DuplicateForEachColumnRewrite to rewrite duplicate columns in ForEach.
PartitionSkewedKeys	Partition reducers for skewed keys.
PoissonSampleLoader	See "Skewed Join sampler" in http://wiki.apache.org/pig/PigSampler
RandomSampleLoader	A loader that samples the data.
ReadScalars	ReadScalars reads a line from a file and returns it as its value.
SampleLoader	Abstract class that specifies the interface for sample loaders