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Posted to dev@pig.apache.org by "Jonathan Coveney (JIRA)" <ji...@apache.org> on 2012/12/04 01:17:58 UTC

[jira] [Created] (PIG-3074) Should check that any UDF returns a Schema of only one Field

Jonathan Coveney created PIG-3074:
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             Summary: Should check that any UDF returns a Schema of only one Field
                 Key: PIG-3074
                 URL: https://issues.apache.org/jira/browse/PIG-3074
             Project: Pig
          Issue Type: Bug
    Affects Versions: 0.11, 0.12
            Reporter: Jonathan Coveney
            Assignee: Jonathan Coveney
             Fix For: 0.12


Currently, it is "valid" for a UDF's outputSchema to return a Schema of more than one field (ie an int,int,long). This causes weird error (different treatment in the case of one value instead of multiple).

I will add a check where you can only have one field (multiple fields should be contained in a Tuple).

This will potentially not be backwards compatible, but it is a bug that people do that.

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