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From "Shaohui Liu (Jira)" <j...@apache.org>
Subject [jira] [Comment Edited] (HIVE-18685) Add catalogs to Hive
Date Thu, 21 Nov 2019 05:27:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-18685?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16978988#comment-16978988
] 

Shaohui Liu edited comment on HIVE-18685 at 11/21/19 5:26 AM:
--------------------------------------------------------------

[~gates]  Very impressive feature.  Any progress update? Thanks~


was (Author: liushaohui):
Very impressive feature.  Any progress update? 

[~gates]

> Add catalogs to Hive
> --------------------
>
>                 Key: HIVE-18685
>                 URL: https://issues.apache.org/jira/browse/HIVE-18685
>             Project: Hive
>          Issue Type: New Feature
>          Components: Metastore, Parser, Security, SQL
>    Affects Versions: 3.0.0
>            Reporter: Alan Gates
>            Assignee: Alan Gates
>            Priority: Major
>         Attachments: HMS Catalog Design Doc.pdf
>
>
> SQL supports two levels of namespaces, called in the spec catalogs and schemas (with
schema being equivalent to Hive's database).  I propose to add the upper level of catalog. 
The attached design doc covers the use cases, requirements, and brief discussion of how it
will be implemented in a backwards compatible way.



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