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https://issues.apache.org/jira/browse/PIG-158?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12590302#action_12590302
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Santhosh Srinivasan commented on PIG-158:
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I am trying to implement POUserFunc to provide a wrapper for any UDF. I wanted
to be able to instantiate the UDF using information obtained from the logical
operator LOUserFunc. The information I need was name of the function and the
arguments in the following form;
String funcSpec = FunctionName + "(" + Args + ")"
This is similar to what we have in the existing pig. I can use the funcSpec to
then instantiate the UDF using existing code in PigContext.
[Santhosh] During parsing, funcSpec is constructed as per the specification
that you have mentioned.
> 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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