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Posted to issues@hive.apache.org by "Pengcheng Xiong (JIRA)" <ji...@apache.org> on 2016/01/02 07:22:39 UTC
[jira] [Updated] (HIVE-12763) Use bit vector to track per partition
NDV
[ https://issues.apache.org/jira/browse/HIVE-12763?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Pengcheng Xiong updated HIVE-12763:
-----------------------------------
Attachment: HIVE-12763.01.patch
> Use bit vector to track per partition NDV
> -----------------------------------------
>
> Key: HIVE-12763
> URL: https://issues.apache.org/jira/browse/HIVE-12763
> Project: Hive
> Issue Type: Improvement
> Reporter: Pengcheng Xiong
> Assignee: Pengcheng Xiong
> Attachments: HIVE-12763.01.patch
>
>
> This will improve merging of per partitions stats.
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