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Posted to dev@pig.apache.org by "Olga Natkovich (JIRA)" <ji...@apache.org> on 2010/07/12 22:29:50 UTC
[jira] Updated: (PIG-1112) FLATTEN eliminates the alias
[ https://issues.apache.org/jira/browse/PIG-1112?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Olga Natkovich updated PIG-1112:
--------------------------------
Fix Version/s: 0.9.0
> 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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