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From "Sergey Shelukhin (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-7616) pre-size mapjoin hashtable based on statistics
Date Thu, 07 Aug 2014 23:55:15 GMT

     [ https://issues.apache.org/jira/browse/HIVE-7616?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sergey Shelukhin updated HIVE-7616:
-----------------------------------

    Attachment: HIVE-7616.04.patch

updated to take buckets into account... the only way to do it is to divide by number of buckets,
for better estimate, the stats from actual partitioning would be needed

> pre-size mapjoin hashtable based on statistics
> ----------------------------------------------
>
>                 Key: HIVE-7616
>                 URL: https://issues.apache.org/jira/browse/HIVE-7616
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Sergey Shelukhin
>            Assignee: Sergey Shelukhin
>         Attachments: HIVE-7616.01.patch, HIVE-7616.02.patch, HIVE-7616.03.patch, HIVE-7616.04.patch,
HIVE-7616.patch
>
>




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