[jira] Resolved: (PIG-1112) FLATTEN eliminates the alias

["Daniel Dai (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/PIG-1112?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Daniel Dai resolved PIG-1112.
-----------------------------

    Resolution: Fixed

It is fixed on the current trunk.

> FLATTEN eliminates the alias
> ----------------------------
>
>                 Key: PIG-1112
>                 URL: https://issues.apache.org/jira/browse/PIG-1112
>             Project: Pig
>          Issue Type: Bug
>            Reporter: Ankur
>            Assignee: Daniel Dai
>             Fix For: 0.9.0
>
>
> If schema for a field of type 'bag' is partially defined then FLATTEN() incorrectly eliminates the field and throws an error. 
> Consider the following example:-
> A = LOAD 'sample' using PigStorage() as (first:chararray, second:chararray, ladder:bag{});              
> B = FOREACH A GENERATE first,FLATTEN(ladder) as third,second;                                   
> C = GROUP B by (first,third);
> This throws the error
>  ERROR org.apache.pig.tools.grunt.Grunt - ERROR 1000: Error during parsing. Invalid alias: third in {first: chararray,second: chararray}

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