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https://issues.apache.org/jira/browse/HIVE-21077?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16744430#comment-16744430
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Vihang Karajgaonkar commented on HIVE-21077:
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Thanks for the review [~bharos92]. Attaching a patch for branch-3. I merged the
patch for the master branch, but I think since I plan to merge this patch in
branch-3 as well, I will have to add a addentum patch to the master branch so
that upgrade scripts are from 3.1.0-3.2.0 are modified instead of 3.2.0-4.0.0.
> 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
>
>
> 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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