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Posted to issues-all@impala.apache.org by "Dinesh Garg (Jira)" <ji...@apache.org> on 2019/08/20 05:36:00 UTC
[jira] [Updated] (IMPALA-8797) Blacklist "sys" and
"information_schema" databases from Hive
[ https://issues.apache.org/jira/browse/IMPALA-8797?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Dinesh Garg updated IMPALA-8797:
--------------------------------
Priority: Critical (was: Major)
> Blacklist "sys" and "information_schema" databases from Hive
> ------------------------------------------------------------
>
> Key: IMPALA-8797
> URL: https://issues.apache.org/jira/browse/IMPALA-8797
> Project: IMPALA
> Issue Type: Improvement
> Components: Catalog, Frontend
> Affects Versions: Impala 3.2.0
> Reporter: bharath v
> Assignee: Quanlong Huang
> Priority: Critical
>
> HMS exposes these two databases "sys" and "information_schema" which contain tables that expose the underlying meta information in a queryable format. However, Impala cannot read them because they come with custom serde that Impala doesn't support.
> From a usability point of view, we should black list those databases from loading, so that users don't see them when querying the database list. I think that is reasonable because they can't query them anyway.
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