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From "Pi Song (JIRA)" <j...@apache.org>
Subject [jira] Commented: (PIG-158) Rework logical plan
Date Thu, 20 Mar 2008 14:23:24 GMT

    [ https://issues.apache.org/jira/browse/PIG-158?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12580773#action_12580773
] 

Pi Song commented on PIG-158:
-----------------------------

It looks good.

Comments:-
1) How do you maintain relations between LOs and dependencies in the abstract graph layer
(OperatorPlan) in the same time?
2) mSortFunc in LOSort is declared as LOUserFunc. If I use a built-in sort, it will still
be LOUserFunc. When we do optimization built-in funcs and UDFs are treated differently so
I think here you should declare a more generic type.
3) LOCogroup seems only define inputs, how to specify columns to be grouped?

Will have a look more next week. Thanks Santhosh !!!

> Rework logical plan
> -------------------
>
>                 Key: PIG-158
>                 URL: https://issues.apache.org/jira/browse/PIG-158
>             Project: Pig
>          Issue Type: Sub-task
>          Components: impl
>            Reporter: Alan Gates
>            Assignee: Alan Gates
>         Attachments: logical_operators.patch
>
>
> Rework the logical plan in line with http://wiki.apache.org/pig/PigExecutionModel

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