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https://issues.apache.org/jira/browse/PIG-158?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12589536#action_12589536
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Pi Song commented on PIG-158:
-----------------------------
Santhosh,
These are questions, no more comments:-
1. Are you going to use the nested plan concept? If so, we would need nested
plan in these operators: LOSort (SortColPlans), LOFilter (ConditionPlan),
LOSplit (ConditionPlans), LOForEach (EvaluationPlans), LOCogroup (GroupByPlans).
2. In a nested plan, what kind of operators can be root nodes? I guess
POProject is one of them?
> 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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