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https://issues.apache.org/jira/browse/HIVE-21634?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jesus Camacho Rodriguez reassigned HIVE-21634:
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> Materialized view rewriting over aggregate operators containing with grouping
> sets
> ----------------------------------------------------------------------------------
>
> Key: HIVE-21634
> URL: https://issues.apache.org/jira/browse/HIVE-21634
> Project: Hive
> Issue Type: Improvement
> Components: Materialized views
> Reporter: Jesus Camacho Rodriguez
> Assignee: Jesus Camacho Rodriguez
> Priority: Major
>
> A possible approach to support rewriting queries with an aggregate with
> grouping sets is implementing a rule that splits the aggregate in the query
> into an aggregate without grouping sets (bottom) and an aggregate with
> grouping sets (top). Then the materialized view rewriting rule will trigger
> on the former.
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