Santhosh Srinivasan updated PIG-320:

    Patch Info: [Patch Available]

> The parser/type checker should use the getSchema method of UDFs to deduce 
> return type/schema
> --------------------------------------------------------------------------------------------
>                 Key: PIG-320
>                 URL: https://issues.apache.org/jira/browse/PIG-320
>             Project: Pig
>          Issue Type: Bug
>          Components: impl
>    Affects Versions: types_branch
>            Reporter: Santhosh Srinivasan
>            Assignee: Santhosh Srinivasan
>             Fix For: types_branch
>         Attachments: udf_outputSchema.patch
> Currently, the parser/type checker uses the getReturnType to deduce the 
> return type of the user defined function (UDF). This mechanism is 
> satisfactory only for basic types (int, long, ...); for composite types 
> (tuple, bag), the schema is also required.The abstract class EvalFunc 
> interface exposes the outputSchema to deduce the return type/schema of the 
> UDF. The parser/type checker should use this method to figure out the return 
> type/schema of the UDF and use it appropriately. 

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