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https://issues.apache.org/jira/browse/PIG-53?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Amir Youssefi updated PIG-53:
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Issue Type: Sub-task (was: Improvement)
Parent: PIG-142
> Parser should detect tuple field number problems when possible
> --------------------------------------------------------------
>
> Key: PIG-53
> URL: https://issues.apache.org/jira/browse/PIG-53
> Project: Pig
> Issue Type: Sub-task
> Components: impl
> Reporter: Benjamin Reed
> Assignee: Alan Gates
>
> In the following:
> A = load 'foo';
> B = foreach A generate $1, $2;
> C = foreach B generate $2;
> The parse should be able to detect that the last line is referencing a
> non-existant field. It cannot do the check for the 2nd line since it doesn't
> know the number of fields of the tuples of A, but it can for the last line
> since it know that tuples of B have 2 fields.
> It is much easier to figure out what is going on when the error is detected
> at parse time rather than runtime.
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