hadoop-hive-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "He Yongqiang (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HIVE-1393) Column pruner prunes essential columns in map join
Date Sun, 13 Jun 2010 22:43:13 GMT

    [ https://issues.apache.org/jira/browse/HIVE-1393?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12878441#action_12878441
] 

He Yongqiang commented on HIVE-1393:
------------------------------------

Paul, i can not reproduce the problem. (I am using the current trunk.)

> Column pruner prunes essential columns in map join
> --------------------------------------------------
>
>                 Key: HIVE-1393
>                 URL: https://issues.apache.org/jira/browse/HIVE-1393
>             Project: Hadoop Hive
>          Issue Type: Bug
>          Components: Query Processor
>    Affects Versions: 0.6.0
>            Reporter: Paul Yang
>
> Run: 
> {code}
> CREATE TABLE tmp_pyang_src2 (key STRING, value STRING);
> INSERT OVERWRITE TABLE tmp_pyang_src2 SELECT key, value FROM src;
> SELECT  /*+ MAPJOIN(a) */ a.key, a.value
> FROM tmp_pyang_src2 a JOIN src b ON a.key=b.key
> LIMIT 10;
> {code}
> a.value will show up as null. Either removing the MAPJOIN hint or set hive.optimize.cp=false;
will produce the correct results.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


Mime
View raw message