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From "Carl Steinbach (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HIVE-675) add database/schema support Hive QL
Date Mon, 30 Aug 2010 22:02:09 GMT

    [ https://issues.apache.org/jira/browse/HIVE-675?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12904364#action_12904364
] 

Carl Steinbach commented on HIVE-675:
-------------------------------------

@John: Are you referring to the changes I made to create_database/get_database/get_databases/drop_database
in hive_metastore.thrift?

In that file I replaced

{{list<string> get_databases()         throws(1:MetaException o1)}}

with

{{list<string> get_databases(1:string pattern) throws(1:MetaException o1)}}

I can easily revert this change, but want to know if there are are other things you think
I need to fix.

I think the changes I made to create_database and drop_database should not be an issue since
these calls weren't actually supported in previous versions.


> add database/schema support Hive QL
> -----------------------------------
>
>                 Key: HIVE-675
>                 URL: https://issues.apache.org/jira/browse/HIVE-675
>             Project: Hadoop Hive
>          Issue Type: New Feature
>          Components: Metastore, Query Processor
>            Reporter: Prasad Chakka
>            Assignee: Carl Steinbach
>             Fix For: 0.7.0
>
>         Attachments: hive-675-2009-9-16.patch, hive-675-2009-9-19.patch, hive-675-2009-9-21.patch,
hive-675-2009-9-23.patch, hive-675-2009-9-7.patch, hive-675-2009-9-8.patch, HIVE-675-2010-08-16.patch.txt,
HIVE-675-2010-7-16.patch.txt, HIVE-675-2010-8-4.patch.txt, HIVE-675.10.patch.txt, HIVE-675.11.patch.txt,
HIVE-675.12.patch.txt, HIVE-675.13.patch.txt
>
>
> Currently all Hive tables reside in single namespace (default). Hive should support multiple
namespaces (databases or schemas) such that users can create tables in their specific namespaces.
These name spaces can have different warehouse directories (with a default naming scheme)
and possibly different properties.
> There is already some support for this in metastore but Hive query parser should have
this feature as well.

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