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From "Prasad Chakka (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HIVE-635) UnionOperator fails when different inputs have different ObjectInspector (but the same TypeInfo)
Date Wed, 15 Jul 2009 23:55:14 GMT

    [ https://issues.apache.org/jira/browse/HIVE-635?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12731749#action_12731749
] 

Prasad Chakka commented on HIVE-635:
------------------------------------

zheng, can you add this context as a comment to initializeOp() code? otherwise it will be
difficult to understand what is going on.

> UnionOperator fails when different inputs have different ObjectInspector (but the same
TypeInfo)
> ------------------------------------------------------------------------------------------------
>
>                 Key: HIVE-635
>                 URL: https://issues.apache.org/jira/browse/HIVE-635
>             Project: Hadoop Hive
>          Issue Type: Bug
>    Affects Versions: 0.3.0, 0.3.1
>            Reporter: Zheng Shao
>            Assignee: Zheng Shao
>         Attachments: HIVE-635.1.patch, HIVE-635.3.patch
>
>
> The current UnionOperator code assumes the ObjectInspectors from all parents are the
same.
> But in reality, they can be different, and UnionOperator needs to do conversion if necessary.

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