Package | Description |
---|---|
org.apache.hadoop.mapred.join |
Given a set of sorted datasets keyed with the same class and yielding equal
partitions, it is possible to effect a join of those datasets prior to the map.
|
Modifier and Type | Class and Description |
---|---|
class |
InnerJoinRecordReader<K extends org.apache.hadoop.io.WritableComparable>
Full inner join.
|
class |
OuterJoinRecordReader<K extends org.apache.hadoop.io.WritableComparable>
Full outer join.
|
Copyright © 2009 The Apache Software Foundation