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From "He Yongqiang (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HIVE-460) Improve ColumnPruner to prune more aggressively and keep column information for input tables
Date Thu, 11 Jun 2009 08:19:07 GMT

    [ https://issues.apache.org/jira/browse/HIVE-460?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12718349#action_12718349
] 

He Yongqiang commented on HIVE-460:
-----------------------------------

One comment to the results of input20.q:
the output data for input20.q in my patch has a NULL column. Even I download a clean truck
code, the NULL output column still exists, so i guess it may has some relation to my machine.
So please test input20.q seperately or pls delete the input20.q's output results(input20.q.out)
contained in the patch before running the test.

> Improve ColumnPruner to prune more aggressively and keep column information for input
tables
> --------------------------------------------------------------------------------------------
>
>                 Key: HIVE-460
>                 URL: https://issues.apache.org/jira/browse/HIVE-460
>             Project: Hadoop Hive
>          Issue Type: Improvement
>          Components: Query Processor
>    Affects Versions: 0.4.0
>            Reporter: Zheng Shao
>            Assignee: He Yongqiang
>         Attachments: hive-460-2009-05-29-noaliasallowed.patch, hive-460-2009-06-04-2-195mapjoin.patch,
hive-460-2009-06-04-testcli-passed.patch, hive-460-2009-06-06-2.patch, hive-460-2009-06-10-2.patch,
HIVE-460.1.patch
>
>
> This is required for column-based table format.

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