[jira] Updated: (PIG-1656) TOBAG udfs ignores columns with null value; it does not use input type to determine output schema

[Thejas M Nair (JIRA)]

     [ 
https://issues.apache.org/jira/browse/PIG-1656?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Thejas M Nair updated PIG-1656:
-------------------------------

        Summary: TOBAG  udfs ignores columns with null value;  it does not use 
input type to determine output schema  (was: TOBAG & TOTUPLE udfs ignores 
columns with null value;  TOBAG does not use input type to determine output 
schema)
    Description: 
TOBAG udf ignores columns with null value
{code}
R4= foreach B generate $0,  TOBAG( id, null, id,null );
grunt> dump R4;
1000    {(1),(1)}
1000    {(2),(2)}
1000    {(3),(3)}
1000    {(4),(4)}
{code}


 TOBAG does not use input type to determine output schema
{code}
grunt> B1 = foreach B generate TOBAG( 1, 2, 3);         
grunt> describe B1;
B1: {{null}}
{code}


  was:
TOBAG & TOTUPLE udfs ignores columns with null value
{code}
R4= foreach B generate $0, TOTUPLE(null, id, null),  TOBAG( id, null, id,null );
grunt> dump R4;
1000    (,1,)   {(1),(1)}
1000    (,2,)   {(2),(2)}
1000    (,3,)   {(3),(3)}
1000    (,4,)   {(4),(4)}
{code}


 TOBAG does not use input type to determine output schema
{code}
grunt> B1 = foreach B generate TOBAG( 1, 2, 3);         
grunt> describe B1;
B1: {{null}}
{code}



> TOBAG  udfs ignores columns with null value;  it does not use input type to 
> determine output schema
> ---------------------------------------------------------------------------------------------------
>
>                 Key: PIG-1656
>                 URL: https://issues.apache.org/jira/browse/PIG-1656
>             Project: Pig
>          Issue Type: Bug
>    Affects Versions: 0.8.0
>            Reporter: Thejas M Nair
>            Assignee: Thejas M Nair
>             Fix For: 0.8.0
>
>
> TOBAG udf ignores columns with null value
> {code}
> R4= foreach B generate $0,  TOBAG( id, null, id,null );
> grunt> dump R4;
> 1000    {(1),(1)}
> 1000    {(2),(2)}
> 1000    {(3),(3)}
> 1000    {(4),(4)}
> {code}
>  TOBAG does not use input type to determine output schema
> {code}
> grunt> B1 = foreach B generate TOBAG( 1, 2, 3);         
> grunt> describe B1;
> B1: {{null}}
> {code}

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