hive-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Hari Sankar Sivarama Subramaniyan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-11387) CBO: Calcite Operator To Hive Operator (Calcite Return Path) : fix reduce_deduplicate optimization
Date Tue, 11 Aug 2015 01:07:46 GMT

    [ https://issues.apache.org/jira/browse/HIVE-11387?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14681052#comment-14681052
] 

Hari Sankar Sivarama Subramaniyan commented on HIVE-11387:
----------------------------------------------------------

[~pxiong] I need to get the patch into  branch-1 as well. The patch does not apply cleanly
with branch-1. Could you please upload one.

Thanks
Hari

> CBO: Calcite Operator To Hive Operator (Calcite Return Path) : fix reduce_deduplicate
optimization
> --------------------------------------------------------------------------------------------------
>
>                 Key: HIVE-11387
>                 URL: https://issues.apache.org/jira/browse/HIVE-11387
>             Project: Hive
>          Issue Type: Sub-task
>          Components: CBO
>            Reporter: Pengcheng Xiong
>            Assignee: Pengcheng Xiong
>             Fix For: 2.0.0
>
>         Attachments: HIVE-11387.01.patch, HIVE-11387.02.patch, HIVE-11387.03.patch, HIVE-11387.04.patch,
HIVE-11387.05.patch, HIVE-11387.06.patch, HIVE-11387.07.patch
>
>
> The main problem is that, due to return path, now we may have {{(RS1-GBY2)\-(RS3-GBY4)}}
when map.aggr=false, i.e., no map aggr. However, in the non-return path, it will be treated
as {{(RS1)-(GBY2-RS3-GBY4)}}. The main problem is that it does not take into account of the
setting.



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

Mime
View raw message