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From "Gunther Hagleitner (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-5908) Use map-join hint to cache intermediate result
Date Wed, 12 Nov 2014 20:40:46 GMT

     [ https://issues.apache.org/jira/browse/HIVE-5908?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Gunther Hagleitner updated HIVE-5908:
-------------------------------------
    Fix Version/s:     (was: 0.14.0)

> Use map-join hint to cache intermediate result
> ----------------------------------------------
>
>                 Key: HIVE-5908
>                 URL: https://issues.apache.org/jira/browse/HIVE-5908
>             Project: Hive
>          Issue Type: New Feature
>          Components: Query Processor
>            Reporter: daxingyu
>            Priority: Minor
>              Labels: features
>   Original Estimate: 72h
>  Remaining Estimate: 72h
>
> There are very complicated query exists in our project , especially some intermediate
result can be very small . But hive will treat these result as a part  of mapreduce job ,
which is very costly.
> So i am proposed to use map-join hint to cache these small result, and speed up the hive
job executions. 



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