Rohini Palaniswamy created PIG-4657:
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Summary: [Pig on Tez] Optimize GroupBy and Distinct key comparison
Key: PIG-4657
URL: https://issues.apache.org/jira/browse/PIG-4657
Project: Pig
Issue Type: Sub-task
Reporter: Rohini Palaniswamy
Assignee: Rohini Palaniswamy
Fix For: 0.16.0
While bytes comparator cannot be used for joins till TEZ-2715 is available,
they can be used for group by and distinct if they have only one Tez input. If
there is more than one input due to union optimization
(OrderedGroupedMergedKVInput) , full comparator has to be still used as
OrderedGroupedMergedKVInput uses the comparator to merge the two underlying
inputs.
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