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Posted to dev@hive.apache.org by "Navis (JIRA)" <ji...@apache.org> on 2014/05/11 00:07:52 UTC

[jira] [Updated] (HIVE-5908) Use map-join hint to cache intermediate result

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

Navis updated HIVE-5908:
------------------------

    Fix Version/s:     (was: 0.13.0)
                   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
>             Fix For: 0.14.0
>
>   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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