Matt McCline created HIVE-11386:
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Summary: Improve Vectorized GROUP BY Performance (Phase 1)
Key: HIVE-11386
URL: https://issues.apache.org/jira/browse/HIVE-11386
Project: Hive
Issue Type: Bug
Components: Hive
Reporter: Matt McCline
Assignee: Matt McCline
Priority: Critical
Improve vectorized GROUP BY performance, with an eye towards the new LLAP
memory management (dramatically reduce the number of Java object, allocate very
large objects, etc).
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