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https://issues.apache.org/jira/browse/PIG-453?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alan Gates updated PIG-453:
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Assignee: Alan Gates (was: Santhosh Srinivasan)
Fix Version/s: 0.9.0
> Scope resolution operators in flattened schemas need to be fixed
> ----------------------------------------------------------------
>
> Key: PIG-453
> URL: https://issues.apache.org/jira/browse/PIG-453
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.2.0
> Reporter: Santhosh Srinivasan
> Assignee: Alan Gates
> Priority: Minor
> Fix For: 0.9.0
>
>
> Currently, the scope resolution operator :: is stored as part of the field
> schema alias. As a result, users may get confused by queries like:
> {code}
> a = load 'st10k' as (name, age, gpa);
> b = group a by name;
> c = foreach b generate flatten(a);
> d = filter c by name != 'fred';
> e = group d by name;
> f = foreach e generate flatten(d);
> g = foreach f generate name;
> {code}
> With PIG-451, the schema for f will have a column with aliases a::name and
> d::a::name. The use of d::a::name is particularly confusing.
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