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From "Peter Vary (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-21227) HIVE-20776 causes view access regression
Date Fri, 08 Feb 2019 13:36:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-21227?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16763596#comment-16763596
] 

Peter Vary commented on HIVE-21227:
-----------------------------------

+1

> HIVE-20776 causes view access regression
> ----------------------------------------
>
>                 Key: HIVE-21227
>                 URL: https://issues.apache.org/jira/browse/HIVE-21227
>             Project: Hive
>          Issue Type: Bug
>          Components: Hive
>    Affects Versions: 4.0.0
>            Reporter: Na Li
>            Assignee: Na Li
>            Priority: Major
>         Attachments: HIVE-21227.001.patch, HIVE-21227.002.patch
>
>
> HIVE-20776 introduces a change that causes regression for view access.
> Before the change, a user with select access of a view can get all columns of a view
with select access of a view that is derived from a partitioned table.
> With the change, that user cannot access that view.
> The reason is that
> * When user accesses columns of a view, Hive needs to get the partitions of the table
that the view is derived from. The user name is the user who issues the query to access the
view.
> *  The change in HIVE-20776 checks if user has access to a table before getting its partitions.
When user only has access of a view, not the access of a table itself, this change denies
the user access of the view. 
> The solution is when getting table partitions, do not filter on table at HMS client



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