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From "Jesus Camacho Rodriguez (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-21344) CBO: Reduce compilation time in presence of materialized views
Date Mon, 06 May 2019 17:03:00 GMT

     [ https://issues.apache.org/jira/browse/HIVE-21344?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jesus Camacho Rodriguez updated HIVE-21344:
-------------------------------------------
    Summary: CBO: Reduce compilation time in presence of materialized views  (was: CBO: Materialized
view registry is not used for Calcite planner)

> CBO: Reduce compilation time in presence of materialized views
> --------------------------------------------------------------
>
>                 Key: HIVE-21344
>                 URL: https://issues.apache.org/jira/browse/HIVE-21344
>             Project: Hive
>          Issue Type: Bug
>          Components: Materialized views
>    Affects Versions: 4.0.0
>            Reporter: Gopal V
>            Assignee: Jesus Camacho Rodriguez
>            Priority: Major
>         Attachments: calcite-planner-after-fix.svg.zip, mv-get-from-remote.png
>
>
> {code}
> // This is not a rebuild, we retrieve all the materializations. In turn, we do not need
>           // to force the materialization contents to be up-to-date, as this is not a
rebuild, and
>           // we apply the user parameters (HIVE_MATERIALIZED_VIEW_REWRITING_TIME_WINDOW)
instead.
>           materializations = db.getAllValidMaterializedViews(getTablesUsed(basePlan),
false, getTxnMgr());
>         }
> {code}
> !mv-get-from-remote.png!



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