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Posted to dev@hive.apache.org by "Gang Tim Liu (JIRA)" <ji...@apache.org> on 2012/10/30 20:24:11 UTC
[jira] [Created] (HIVE-3642) Hive List Bucketing - optimize
transform()
Gang Tim Liu created HIVE-3642:
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Summary: Hive List Bucketing - optimize transform()
Key: HIVE-3642
URL: https://issues.apache.org/jira/browse/HIVE-3642
Project: Hive
Issue Type: New Feature
Reporter: Gang Tim Liu
Priority: Minor
In list bucketing transform(), we create pruning tree for each partition.
Although it is possible that different partitions have different skewed keys, chances are that there will be a lot of overlap.
It would be a good idea to optimize that case.
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[jira] [Assigned] (HIVE-3642) Hive List Bucketing - optimize
transform()
Posted by "Gang Tim Liu (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HIVE-3642?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Gang Tim Liu reassigned HIVE-3642:
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Assignee: Gang Tim Liu
> Hive List Bucketing - optimize transform()
> ------------------------------------------
>
> Key: HIVE-3642
> URL: https://issues.apache.org/jira/browse/HIVE-3642
> Project: Hive
> Issue Type: New Feature
> Reporter: Gang Tim Liu
> Assignee: Gang Tim Liu
> Priority: Minor
>
> In list bucketing transform(), we create pruning tree for each partition.
> Although it is possible that different partitions have different skewed keys, chances are that there will be a lot of overlap.
> It would be a good idea to optimize that case.
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