[jira] [Resolved] (PIG-2063) Regression: an invalid query regarding union onschema becoming valid

["Thejas M Nair (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/PIG-2063?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Thejas M Nair resolved PIG-2063.
--------------------------------

    Resolution: Invalid

The behavior of union-onschema has changed as a result of PIG-1536. I have created PIG-2068 to update the documentation.


> Regression: an invalid query regarding union onschema becoming valid
> --------------------------------------------------------------------
>
>                 Key: PIG-2063
>                 URL: https://issues.apache.org/jira/browse/PIG-2063
>             Project: Pig
>          Issue Type: Bug
>    Affects Versions: 0.9.0
>            Reporter: Xuefu Zhang
>            Assignee: Thejas M Nair
>             Fix For: 0.9.0
>
>
> The following query fails in 0.8:
> A = load 'x' as (x:long, y:chararray);
> B = load 'y' as (x:long, y:float);
> C = union onschema A, B;
> grunt> C = union onschema A, B;
> 2011-05-12 09:01:47,031 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR 1031: Incompatible types for merging schemas. Field schema: y: chararray Other field schema: y: float
> However, in 0.9 validation doesn't catch the error. It seems float is cast to chararray automatically.
> grunt> describe C;
> C: {x: long,y: chararray}

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