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From "Ning Zhang (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HIVE-1412) CombineHiveInputFormat bug on tablesample
Date Thu, 17 Jun 2010 19:48:23 GMT

     [ https://issues.apache.org/jira/browse/HIVE-1412?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ning Zhang updated HIVE-1412:
-----------------------------

    Attachment: HIVE-1412.patch

> CombineHiveInputFormat bug on tablesample
> -----------------------------------------
>
>                 Key: HIVE-1412
>                 URL: https://issues.apache.org/jira/browse/HIVE-1412
>             Project: Hadoop Hive
>          Issue Type: Bug
>            Reporter: Ning Zhang
>            Assignee: Ning Zhang
>             Fix For: 0.6.0
>
>         Attachments: HIVE-1412.patch
>
>
> CombineHiveInputFormat should combine all files inside one partition to form a split
but should not takes files cross partition boundary. This works for regular table and partitions
since all input paths are directory. However this breaks when the input is files (in which
case tablesample could be the use case). CombineHiveInputFormat should adjust to the case
when input could also be non-directories. 

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