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From "Naveen Gangam (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-21337) HMS Metadata migration from Postgres/Derby to other DBs fail
Date Tue, 05 Mar 2019 22:04:00 GMT

     [ https://issues.apache.org/jira/browse/HIVE-21337?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Naveen Gangam updated HIVE-21337:
---------------------------------
    Status: Open  (was: Patch Available)

> HMS Metadata migration from Postgres/Derby to other DBs fail
> ------------------------------------------------------------
>
>                 Key: HIVE-21337
>                 URL: https://issues.apache.org/jira/browse/HIVE-21337
>             Project: Hive
>          Issue Type: Improvement
>          Components: Metastore
>    Affects Versions: 3.0.0
>            Reporter: Naveen Gangam
>            Assignee: Naveen Gangam
>            Priority: Minor
>         Attachments: HIVE-21337.patch
>
>
> Customer recently was migrating from Postgres to Oracle for HMS metastore. During import
of the [exported] data from HMS metastore from postgres, failures are seen as the COLUMNS_V2.COMMENT
is 4000 bytes long whereas oracle and other schemas define it to be 256 bytes.
> This inconsistency in the schema makes the migration cumbersome and manual. This jira
makes this column consistent in length across all databases.



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