Jesus Camacho Rodriguez updated HIVE-18991:
    Attachment: HIVE-18991.08.patch

> Drop database cascade doesn't work with materialized views
> ----------------------------------------------------------
>                 Key: HIVE-18991
>                 URL: https://issues.apache.org/jira/browse/HIVE-18991
>             Project: Hive
>          Issue Type: Bug
>          Components: Materialized views, Metastore
>    Affects Versions: 3.0.0
>            Reporter: Alan Gates
>            Assignee: Jesus Camacho Rodriguez
>            Priority: Major
>         Attachments: HIVE-18991.01.patch, HIVE-18991.03.patch, 
> HIVE-18991.06.patch, HIVE-18991.07.patch, HIVE-18991.08.patch, 
> HIVE-18991.patch
> Create a database, add a table and then a materialized view that depends on 
> the table.  Then drop the database with cascade set.  Sometimes this will 
> fail because when HiveMetaStore.drop_database_core goes to drop all of the 
> tables it may drop the base table before the materialized view, which will 
> cause an integrity constraint violation in the RDBMS.  To resolve this that 
> method should change to fetch and drop materialized views before tables.
> cc [~jcamachorodriguez]

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