Class DistinctCombiner

  extended by org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.DistinctCombiner

public class DistinctCombiner
extends Object

A special implementation of combiner used only for distinct. This combiner does not even parse out the records. It just throws away duplicate values in the key in order ot minimize the data being sent to the reduce.

Nested Class Summary
static class DistinctCombiner.Combine
Constructor Summary
Method Summary
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail


public DistinctCombiner()

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