hive-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Jesus Camacho Rodriguez (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-12017) Do not disable CBO by default when number of joins in a query is equal or less than 1
Date Wed, 04 Nov 2015 09:03:27 GMT

     [ https://issues.apache.org/jira/browse/HIVE-12017?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jesus Camacho Rodriguez updated HIVE-12017:
-------------------------------------------
    Fix Version/s: 2.0.0

> Do not disable CBO by default when number of joins in a query is equal or less than 1
> -------------------------------------------------------------------------------------
>
>                 Key: HIVE-12017
>                 URL: https://issues.apache.org/jira/browse/HIVE-12017
>             Project: Hive
>          Issue Type: Improvement
>          Components: CBO
>    Affects Versions: 2.0.0
>            Reporter: Jesus Camacho Rodriguez
>            Assignee: Jesus Camacho Rodriguez
>             Fix For: 2.0.0
>
>         Attachments: HIVE-12017.01.patch, HIVE-12017.02.patch, HIVE-12017.03.patch, HIVE-12017.04.patch,
HIVE-12017.05.patch
>
>
> Instead, we could disable some parts of CBO that are not relevant if the query contains
1 or 0 joins. Implementation should be able to define easily other query patterns for which
we might disable some parts of CBO (in case we want to do it in the future).



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message