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Posted to dev@hive.apache.org by "Rajesh Balamohan (Jira)" <ji...@apache.org> on 2020/02/24 08:15:00 UTC
[jira] [Created] (HIVE-22924) Optimise
VectorGroupByOperator::prepareBatchAggregationBufferSets
Rajesh Balamohan created HIVE-22924:
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Summary: Optimise VectorGroupByOperator::prepareBatchAggregationBufferSets
Key: HIVE-22924
URL: https://issues.apache.org/jira/browse/HIVE-22924
Project: Hive
Issue Type: Bug
Components: Hive
Reporter: Rajesh Balamohan
Attachments: Screenshot 2020-02-24 at 1.40.02 PM.jpg
{{VectorHashKeyWrapperGeneral::equals}} comparison becomes expensive in [https://github.com/apache/hive/blob/master/ql/src/java/org/apache/hadoop/hive/ql/exec/vector/VectorGroupByOperator.java#L496]
!Screenshot 2020-02-24 at 1.40.02 PM.jpg|width=494,height=328!
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