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Posted to dev@pig.apache.org by "Chao Wang (JIRA)" <ji...@apache.org> on 2009/10/30 18:28:00 UTC

[jira] Created: (PIG-1067) [Zebra] to support pig projection push down in Zebra

[Zebra] to support pig projection push down in Zebra
----------------------------------------------------

                 Key: PIG-1067
                 URL: https://issues.apache.org/jira/browse/PIG-1067
             Project: Pig
          Issue Type: New Feature
    Affects Versions: 0.4.0
            Reporter: Chao Wang
            Assignee: Chao Wang
             Fix For: 0.6.0


Pig tries to determine which fields in a query script file will be needed and passes that information to the load function, thereby optimizing the query by reducing the data to be loaded.

To support this optimization, Zebra needs to implement fieldsToRead method in TableLoader class to utilize this information. This jira is for this new feature.

For more information of this optimization on pig side, one can refer to jira:  PIG-653

https://issues.apache.org/jira/browse/PIG-653

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[jira] Resolved: (PIG-1067) [Zebra] to support pig projection push down in Zebra

Posted by "Yan Zhou (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/PIG-1067?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yan Zhou resolved PIG-1067.
---------------------------

    Resolution: Fixed

Somehow this patch is virtually made a duplicate of https://issues.apache.org/jira/browse/PIG-653. Close this as that.

> [Zebra] to support pig projection push down in Zebra
> ----------------------------------------------------
>
>                 Key: PIG-1067
>                 URL: https://issues.apache.org/jira/browse/PIG-1067
>             Project: Pig
>          Issue Type: New Feature
>    Affects Versions: 0.4.0
>            Reporter: Chao Wang
>            Assignee: Chao Wang
>             Fix For: 0.6.0
>
>
> Pig tries to determine which fields in a query script file will be needed and passes that information to the load function, thereby optimizing the query by reducing the data to be loaded.
> To support this optimization, Zebra needs to implement fieldsToRead method in TableLoader class to utilize this information. This jira is for this new feature.
> For more information of this optimization on pig side, one can refer to jira:  PIG-653
> https://issues.apache.org/jira/browse/PIG-653

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