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From "Alan Gates (JIRA)" <j...@apache.org>
Subject [jira] Updated: (PIG-667) Error in projection implementation or in typechecking when casting a member of Bag
Date Tue, 21 Sep 2010 21:48:33 GMT

     [ https://issues.apache.org/jira/browse/PIG-667?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Alan Gates updated PIG-667:
---------------------------

         Assignee: Alan Gates
    Fix Version/s: 0.9.0
         Priority: Minor  (was: Major)

> Error in projection implementation or in typechecking  when casting a member of Bag
> -----------------------------------------------------------------------------------
>
>                 Key: PIG-667
>                 URL: https://issues.apache.org/jira/browse/PIG-667
>             Project: Pig
>          Issue Type: Bug
>         Environment: i686 i386 GNU/Linux
>            Reporter: Araceli Henley
>            Assignee: Alan Gates
>            Priority: Minor
>             Fix For: 0.9.0
>
>
> As one of its members, a bag contains "age" of type "int". When this value is used as
an argument to DIFF and cast as an int for the comparison, the following error is thrown:
> 9/02/11 14:20:46 INFO mapReduceLayer.MapReduceLauncher: 50% complete
> 09/02/11 14:21:31 ERROR mapReduceLayer.MapReduceLauncher: Map reduce job failed
> 09/02/11 14:21:31 ERROR mapReduceLayer.MapReduceLauncher: Number of failed jobs: 1
> 09/02/11 14:21:31 ERROR mapReduceLayer.MapReduceLauncher: Job failed!
> error message for task: map
> error message for task: reduce
> 09/02/11 14:21:31 ERROR grunt.Grunt: ERROR 1072: Out of bounds access: Request for field
number 1 exceeds tuple size of 1
> Steps to reproduce 
>  # valid use of DIFF with valid cast for bag field
> TEST ErrorHandling.AggregateFunc_601
>  A =LOAD '/user/pig/tests/data/types/DataAll' USING PigStorage() AS ( Fint:int, Flong:long,
Fdouble:double, Ffloat:float, Fchar:chararray, Fchararray:chararray, Fbytearray:bytearray,
Fmap:map[], Fbag:BAG{ t:tuple( name, age, avg ) }, Ftuple:( name:chararray, age:int, avg:float)
);
> B =GROUP A ALL; 
> X =FOREACH B GENERATE DIFF ( ( BAG{tuple(int)} ) A.Fbag.age, A.Fint );
>  STORE X INTO '/user/pig/tests/results/araceli.1234390832/AggregateFunc_601.out' USING
PigStorage();
>  # invalid use of DIFF with valid cast for bag field, DIFF contains one argument instead
off two
> TEST ErrorHandling.AggregateFunc_60
>  A =LOAD '/user/pig/tests/data/types/DataAll' USING PigStorage() AS ( Fint:int, Flong:long,
Fdouble:double, Ffloat:float, Fchar:chararray, Fchararray:chararray, Fbytearray:bytearray,
Fmap:map[], Fbag:BAG{ t:tuple( name, age, avg ) }, Ftuple:( name:chararray, age:int, avg:float)
);
> B =GROUP A ALL; 
> X =FOREACH B GENERATE DIFF ( ( BAG{tuple(int)} ) A.Fbag.age ); 
> STORE X INTO '/user/pig/tests/results/araceli.1234381533/AggregateFunc_60.out' USING
PigStorage();

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