[jira] [Updated] (PIG-3295) Casting from bytearray failing after Union (even when each field is from a single Loader)

["Koji Noguchi (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/PIG-3295?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Koji Noguchi updated PIG-3295:
------------------------------

    Attachment: pig-3295-v07.patch

Finally got most of the e2e running on my environment.  My last patch introduced one failure in LineageErrors where it was grepping for the error message.  Updated the expected error message.

Since rest of the patch is reviewed with +1,  I'll commit this patch to trunk tomorrow.

> Casting from bytearray failing after Union (even when each field is from a single Loader)
> -----------------------------------------------------------------------------------------
>
>                 Key: PIG-3295
>                 URL: https://issues.apache.org/jira/browse/PIG-3295
>             Project: Pig
>          Issue Type: Bug
>          Components: parser
>            Reporter: Koji Noguchi
>            Assignee: Koji Noguchi
>            Priority: Minor
>         Attachments: pig-3295-v01.patch, pig-3295-v02.patch, pig-3295-v03.patch, pig-3295-v04.patch, pig-3295-v05.patch, pig-3295-v06.patch, pig-3295-v07.patch
>
>
> One example
> {noformat}
> A = load 'data1.txt' as line:bytearray;
> B = load 'c1.txt' using TextLoader() as cookie1;
> C = load 'c2.txt' using TextLoader() as cookie2;
> B2 = join A by line, B by cookie1;
> C2 = join A by line, C by cookie2;
> D = union onschema B2,C2; -- D: {A::line: bytearray,B::cookie1: bytearray,C::cookie2: bytearray}
> E = foreach D generate (chararray) line, (chararray) cookie1, (chararray) cookie2;
> dump E;
> {noformat}
> This script fails at runtime with 
> "Caused by: org.apache.pig.backend.executionengine.ExecException: ERROR 1075: Received a bytearray from the UDF. Cannot determine how to convert the bytearray to string."
> This is different from PIG-3293 such that each field in 'D' belongs to a single loader whereas on PIG-3293, it came from multiple loader.



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