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https://issues.apache.org/jira/browse/HIVE-18979?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jesus Camacho Rodriguez reassigned HIVE-18979:
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> Enable AggregateReduceFunctionsRule from Calcite
> ------------------------------------------------
>
> Key: HIVE-18979
> URL: https://issues.apache.org/jira/browse/HIVE-18979
> Project: Hive
> Issue Type: Task
> Components: CBO
> Affects Versions: 3.0.0
> Reporter: Jesus Camacho Rodriguez
> Assignee: Jesus Camacho Rodriguez
> Priority: Major
>
> The rule rewrites aggregate functions into simpler ones. It should help us
> gathering more common sub-expressions for a given plan, and it should have a
> positive effect on materialized view rewriting coverage too.
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