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https://issues.apache.org/jira/browse/HIVE-4606?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Remus Rusanu updated HIVE-4606:
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Attachment: HIVE-4606.3.patch.txt
Removed JavaObjectSizeUtil, replaced with JavaDataModel
> Implement vector group by hash spill
> ------------------------------------
>
> Key: HIVE-4606
> URL: https://issues.apache.org/jira/browse/HIVE-4606
> Project: Hive
> Issue Type: Sub-task
> Components: Query Processor
> Affects Versions: vectorization-branch
> Reporter: Remus Rusanu
> Assignee: Remus Rusanu
> Fix For: vectorization-branch
>
> Attachments: HIVE-4606.1.patch.txt, HIVE-4606.2.patch.txt,
> HIVE-4606.3.patch.txt
>
>
> the row mode GBy operator is capable of spilling the hash map (by emitting it
> into the M/R and deleting the keys emitted) to conform to emmory constraints.
> The VGBy should be able to do the same.
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