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https://issues.apache.org/jira/browse/SENTRY-2406?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16623802#comment-16623802
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Arjun Mishra commented on SENTRY-2406:
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HashSet<List<DBModelAuthorizable>> doesn't remove duplicates. See image attached
> Make sure inputHierarchy and outputHierarchy have unique values
> ---------------------------------------------------------------
>
> Key: SENTRY-2406
> URL: https://issues.apache.org/jira/browse/SENTRY-2406
> Project: Sentry
> Issue Type: Bug
> Components: Sentry
> Affects Versions: 2.1.0
> Reporter: Arjun Mishra
> Assignee: Arjun Mishra
> Priority: Major
> Attachments: HashSet of Listof Authorizables output has
> duplicates.png, SENTRY-2406.01.patch
>
>
> When building input or output hierarchy list, we iterate over all ReadEntity
> inputs received from Hive. The inputs particularly have accessed columns that
> can repeat for other ReadEntity objects. This happens definitively when a
> table has partitions. We should in general protect Sentry from not having to
> authorize over a list of DBModelAuthorizable objects when it has already been
> done.
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