bharath v created IMPALA-8797:
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Summary: 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: Jiawei Wang
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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