[jira] [Commented] (HIVE-1558) introducing the "dual" table

["Edward Capriolo (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-1558?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13265575#comment-13265575 ] 

Edward Capriolo commented on HIVE-1558:
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I created a DualInputFormat that can be used to easily create a dual table.

https://github.com/edwardcapriolo/DualInputFormat. 
                
> introducing the "dual" table
> ----------------------------
>
>                 Key: HIVE-1558
>                 URL: https://issues.apache.org/jira/browse/HIVE-1558
>             Project: Hive
>          Issue Type: New Feature
>          Components: Query Processor
>            Reporter: Ning Zhang
>            Assignee: Marcin Kurczych
>
> The "dual" table in MySQL and Oracle is very convenient in testing UDFs or constructing rows without reading any other tables. 
> If dual is the only data source we could leverage the local mode execution. 

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