hadoop-pig-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Alan Gates (JIRA)" <j...@apache.org>
Subject [jira] Updated: (PIG-777) Code refactoring: Create optimization out of store/load post processing code
Date Fri, 18 Sep 2009 17:46:16 GMT

     [ https://issues.apache.org/jira/browse/PIG-777?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Alan Gates updated PIG-777:
---------------------------

    Status: Open  (was: Patch Available)

Moving from patch available to open since the contributed patch has been committed and the
JIRA is being held open to address other issues.

> Code refactoring: Create optimization out of store/load post processing code
> ----------------------------------------------------------------------------
>
>                 Key: PIG-777
>                 URL: https://issues.apache.org/jira/browse/PIG-777
>             Project: Pig
>          Issue Type: Improvement
>            Reporter: Gunther Hagleitner
>         Attachments: log_message.patch
>
>
> The postProcessing method in the pig server checks whether a logical graph contains stores
to and loads from the same location. If so, it will either connect the store and load, or
optimize by throwing out the load and connecting the store predecessor with the successor
of the load.
> Ideally the introduction of the store and load connection should happen in the query
compiler, while the optimization should then happen in an separate optimizer step as part
of the optimizer framework.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


Mime
View raw message