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From "Dmitriy V. Ryaboy (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-1107) Generic parallel execution framework for Hive (and Pig, and ...)
Date Thu, 07 Jun 2012 16:31:23 GMT

    [ https://issues.apache.org/jira/browse/HIVE-1107?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13291109#comment-13291109
] 

Dmitriy V. Ryaboy commented on HIVE-1107:
-----------------------------------------

I don't think comparing implementations of individual operators is going to lead to anything
useful -- one, because they work in the larger context of their respective frameworks, and
two, because the real value is in converging on a single optimizer, not on "best" implementations
of filters or joins.
                
> Generic parallel execution framework for Hive (and Pig, and ...)
> ----------------------------------------------------------------
>
>                 Key: HIVE-1107
>                 URL: https://issues.apache.org/jira/browse/HIVE-1107
>             Project: Hive
>          Issue Type: New Feature
>          Components: Query Processor
>            Reporter: Carl Steinbach
>
> Pig and Hive each have their own libraries for handling plan execution. As we prepare
to invest more time improving Hive's plan execution mechanism we should also start to consider
ways of building a generic plan execution mechanism that is capable of supporting the needs
of Hive and Pig, as well as other Hadoop data flow programming environments. 

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