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Posted to dev@hive.apache.org by "Zheng Shao (JIRA)" <ji...@apache.org> on 2010/01/12 20:18:54 UTC

[jira] Updated: (HIVE-579) join with a skew in does not work

     [ https://issues.apache.org/jira/browse/HIVE-579?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Zheng Shao updated HIVE-579:
----------------------------

    Fix Version/s:     (was: 0.4.0)
                   0.4.2

> join with a skew in does not work
> ---------------------------------
>
>                 Key: HIVE-579
>                 URL: https://issues.apache.org/jira/browse/HIVE-579
>             Project: Hadoop Hive
>          Issue Type: Bug
>          Components: Query Processor
>    Affects Versions: 0.4.0
>            Reporter: Namit Jain
>             Fix For: 0.4.2
>
>
> It would be good to figure out the join order - it can be based on statistics or sampling.
> Till that happens, it might be useful to integrate the hash table that the reducer maintains with jdbm. Atleast, the out of memory errors can be avoided.

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