[jira] [Resolved] (HIVE-25941) Long compilation time of complex query due to analysis for materialized view rewrite

["Krisztian Kasa (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HIVE-25941?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Krisztian Kasa resolved HIVE-25941.
-----------------------------------
    Resolution: Fixed

Pushed to master. Thanks [~kgyrtkirk] and [~amansinha100] for review.

> Long compilation time of complex query due to analysis for materialized view rewrite
> ------------------------------------------------------------------------------------
>
>                 Key: HIVE-25941
>                 URL: https://issues.apache.org/jira/browse/HIVE-25941
>             Project: Hive
>          Issue Type: Bug
>          Components: Materialized views
>            Reporter: Krisztian Kasa
>            Assignee: Krisztian Kasa
>            Priority: Major
>              Labels: pull-request-available
>         Attachments: sample.png
>
>          Time Spent: 1h 50m
>  Remaining Estimate: 0h
>
> When compiling query the optimizer tries to rewrite the query plan or subtrees of the plan to use materialized view scans.
> If
> {code}
> set hive.materializedview.rewriting.sql.subquery=false;
> {code}
> the compilation succeed in less then 10 sec otherwise it takes several minutes (~ 5min) depending on the hardware.



--
This message was sent by Atlassian Jira
(v8.20.1#820001)