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Posted to issues@calcite.apache.org by "Jesus Camacho Rodriguez (JIRA)" <ji...@apache.org> on 2019/03/21 16:24:00 UTC

[jira] [Assigned] (CALCITE-2942) Materialized view rewriting logic instantiates RelMetadataQuery each time the rule is triggered

     [ https://issues.apache.org/jira/browse/CALCITE-2942?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jesus Camacho Rodriguez reassigned CALCITE-2942:
------------------------------------------------

    Assignee: Jesus Camacho Rodriguez

> Materialized view rewriting logic instantiates RelMetadataQuery each time the rule is triggered
> -----------------------------------------------------------------------------------------------
>
>                 Key: CALCITE-2942
>                 URL: https://issues.apache.org/jira/browse/CALCITE-2942
>             Project: Calcite
>          Issue Type: Improvement
>            Reporter: Jesus Camacho Rodriguez
>            Assignee: Jesus Camacho Rodriguez
>            Priority: Major
>
> Performance penalty is similar to the one described in CALCITE-1812. An instance may be available in the cluster, hence we can use it; this is just an addendum to CALCITE-1812.



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