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From "Alan Gates (JIRA)" <j...@apache.org>
Subject [jira] Commented: (PIG-158) Rework logical plan
Date Tue, 08 Apr 2008 22:51:24 GMT

    [ https://issues.apache.org/jira/browse/PIG-158?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12586996#action_12586996
] 

Alan Gates commented on PIG-158:
--------------------------------

You can still save state, as it's the same visitor.  The only state the visitor is loosing
is how it's walking.  But it still knows what nodes its on, which it switches to a nested
plan, etc.  I can't think of a case off the top of my head where the visitor is limited by
the fact that it isn't directly controlling the graph traversal.

> 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, logical_operators_rev_1.patch, logical_operators_rev_2.patch,
logical_operators_rev_3.patch, visitorWalker.patch
>
>
> Rework the logical plan in line with http://wiki.apache.org/pig/PigExecutionModel

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