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From "Ashish Thusoo (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HIVE-805) Session level metastore
Date Wed, 07 Oct 2009 20:25:32 GMT

     [ https://issues.apache.org/jira/browse/HIVE-805?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ashish Thusoo updated HIVE-805:
-------------------------------

    Attachment: HIVE-805-1.patch

Incorporated Prasad's review comments. I have not yet disabled this for partition tables though.

> Session level metastore
> -----------------------
>
>                 Key: HIVE-805
>                 URL: https://issues.apache.org/jira/browse/HIVE-805
>             Project: Hadoop Hive
>          Issue Type: New Feature
>          Components: Query Processor
>    Affects Versions: 0.2.0
>            Reporter: Ashish Thusoo
>            Assignee: Ashish Thusoo
>             Fix For: 0.5.0
>
>         Attachments: HIVE-805-1.patch, HIVE-805.patch
>
>
> Implement a shadow metastore that is in memory and runs for a session. This can contain
definitions for session specific views that can be used to implement data flow variables in
Hive. It can also be used for testing scripts. First we will support the later use case where
in all the DDL statements in the session create objects in the session metastore and all the
queries are converted to explain internal. Any thoughts on load commands?
> This feature is enabled when
> set hive.session.test = true
> is done in the session.

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