Hadoop QA commented on PIG-592:

-1 overall.  Here are the results of testing the latest attachment 
  against trunk revision 814800.

    +1 @author.  The patch does not contain any @author tags.

    +1 tests included.  The patch appears to include 3 new or modified tests.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 javac.  The applied patch does not increase the total number of javac 
compiler warnings.

    +1 findbugs.  The patch does not introduce any new Findbugs warnings.

    +1 release audit.  The applied patch does not increase the total number of 
release audit warnings.

    -1 core tests.  The patch failed core unit tests.

    +1 contrib tests.  The patch passed contrib unit tests.

Test results: 
Findbugs warnings: 
Console output: 

This message is automatically generated.

> schema inferred incorrectly
> ---------------------------
>                 Key: PIG-592
>                 URL: https://issues.apache.org/jira/browse/PIG-592
>             Project: Pig
>          Issue Type: Bug
>    Affects Versions: 0.4.0
>            Reporter: Christopher Olston
>             Fix For: 0.5.0
>         Attachments: PIG-592-1.patch
> A simple pig script, that never introduces any schema information:
> A = load 'foo';
> B = foreach (group A by $8) generate group, COUNT($1);
> C = load 'bar';       // ('bar' has two columns)
> D = join B by $0, C by $0;
> E = foreach D generate $0, $1, $3;
> Fails, complaining that $3 does not exist:
> java.io.IOException: Out of bound access. Trying to access non-existent 
> column: 3. Schema {B::group: bytearray,long,bytearray} has 3 column(s).
> Apparently Pig gets confused, and thinks it knows the schema for C (a single 
> bytearray column).

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