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From "Bharathkrishna Guruvayoor Murali (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-21077) Database and catalogs should have creation time
Date Fri, 18 Jan 2019 05:29:00 GMT

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Bharathkrishna Guruvayoor Murali commented on HIVE-21077:
---------------------------------------------------------

The changes for upgrade scripts from 3.1.0 to 3.2.0 looks good to me.
+1

> Database and catalogs should have creation time
> -----------------------------------------------
>
>                 Key: HIVE-21077
>                 URL: https://issues.apache.org/jira/browse/HIVE-21077
>             Project: Hive
>          Issue Type: Improvement
>          Components: Standalone Metastore
>            Reporter: Vihang Karajgaonkar
>            Assignee: Vihang Karajgaonkar
>            Priority: Major
>         Attachments: HIVE-21077.01.patch, HIVE-21077.02.patch, HIVE-21077.03.patch, HIVE-21077.04.patch,
HIVE-21077.05.patch, HIVE-21077.06.patch, HIVE-21077.07.patch, HIVE-21077.08.branch-3.patch,
HIVE-21077.09.patch, HIVE-21077.10.patch
>
>
> Currently, database do not have creation time like we have for tables and partitions.
> {noformat}
> // namespace for tables
> struct Database {
>   1: string name,
>   2: string description,
>   3: string locationUri,
>   4: map<string, string> parameters, // properties associated with the database
>   5: optional PrincipalPrivilegeSet privileges,
>   6: optional string ownerName,
>   7: optional PrincipalType ownerType,
>   8: optional string catalogName
> }
> {noformat}
> Currently, without creationTime there is no way to identify if the copy of Database which
a client has is the same as the one on the server if the name is same. Without object ids
creationTime value is the only way currently to identify uniquely a instance of metastore
object. It would be good to have Database creation time as well.
> Same applies for catalogs as well.



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