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https://issues.apache.org/jira/browse/HIVE-18991?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Work on HIVE-18991 started by Jesus Camacho Rodriguez.
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> 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
>
> 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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