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https://issues.apache.org/jira/browse/HIVE-460?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12717893#action_12717893
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He Yongqiang commented on HIVE-460:
-----------------------------------

>>When I ran the tests, all TestParse tests failed
sorry, my fault. hive-460-2009-06-06-2.patch does not include a overwrite test 
for TestParse.
>>Also, for TestCliDriver, I got errors in input20, join32 and join36 
input20 is ok in my test. join36 is a newly added testcase, and the previous 
patch does not include it in.
One wired thing about join32 is that if i run the test with overwrite 
specified, and every thing is ok. But if no overwrite specified, an error is 
reported. So i will try figure it out and upload a new patch. 


> 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-460.1.patch
>
>
> This is required for column-based table format.

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