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Posted to dev@hive.apache.org by "Alan Gates (JIRA)" <ji...@apache.org> on 2018/02/12 22:21:00 UTC

[jira] [Created] (HIVE-18685) Add catalogs to metastore

Alan Gates created HIVE-18685:
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             Summary: Add catalogs to metastore
                 Key: HIVE-18685
                 URL: https://issues.apache.org/jira/browse/HIVE-18685
             Project: Hive
          Issue Type: New Feature
          Components: Metastore
    Affects Versions: 3.0.0
            Reporter: Alan Gates
            Assignee: Alan Gates
         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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