Need raw comparators for hadoop record types
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Key: HADOOP-525
URL: http://issues.apache.org/jira/browse/HADOOP-525
Project: Hadoop
Issue Type: Improvement
Components: record
Affects Versions: 0.6.0
Reporter: Sameer Paranjpye
Assigned To: Milind Bhandarkar
Priority: Minor
Fix For: 0.7.0
Raw comparators are not generated for types that are generated with the Hadoop
record framework. This could have a substantial performance impact when using
hadoop record generated types in Map/Reduce. The record i/o framework should
auto-generate raw comparators for types.
Comparison for hadoop record i/o types is defined to be member wise comparison
of objects. A possible implementation could only deserialize one member from
each object at a time, compare them and either return or move on to the next
member if the values are equal.
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