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Posted to dev@hive.apache.org by "He Yongqiang (JIRA)" <ji...@apache.org> on 2010/01/25 05:36:34 UTC
[jira] Created: (HIVE-1091) Enable skew join for the last table
Enable skew join for the last table
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Key: HIVE-1091
URL: https://issues.apache.org/jira/browse/HIVE-1091
Project: Hadoop Hive
Issue Type: Improvement
Reporter: He Yongqiang
In my test, even by enabling stream table, it will still take a very long time (actually never get a chance to finish).
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[jira] Commented: (HIVE-1091) Enable skew join for the last table
Posted by "Namit Jain (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HIVE-1091?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12804393#action_12804393 ]
Namit Jain commented on HIVE-1091:
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It might be difficult to do so in the current form, since partial results may already be emitted.
You will never know the number of rows remaining, so may never be able to decide whether to switch or not in
the absence of statistics.
> Enable skew join for the last table
> -----------------------------------
>
> Key: HIVE-1091
> URL: https://issues.apache.org/jira/browse/HIVE-1091
> Project: Hadoop Hive
> Issue Type: Improvement
> Reporter: He Yongqiang
> Assignee: He Yongqiang
>
> In my test, even by enabling stream table, it will still take a very long time (actually never get a chance to finish).
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[jira] Assigned: (HIVE-1091) Enable skew join for the last table
Posted by "Namit Jain (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HIVE-1091?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Namit Jain reassigned HIVE-1091:
--------------------------------
Assignee: He Yongqiang
> Enable skew join for the last table
> -----------------------------------
>
> Key: HIVE-1091
> URL: https://issues.apache.org/jira/browse/HIVE-1091
> Project: Hadoop Hive
> Issue Type: Improvement
> Reporter: He Yongqiang
> Assignee: He Yongqiang
>
> In my test, even by enabling stream table, it will still take a very long time (actually never get a chance to finish).
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