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From "Prashant Kommireddi (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (PIG-2375) Incorrect outputSchema is invoked when overloading UDF in 0.9.1
Date Wed, 16 Nov 2011 02:04:52 GMT

     [ https://issues.apache.org/jira/browse/PIG-2375?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Prashant Kommireddi updated PIG-2375:
-------------------------------------

    Attachment: LogFieldValues.java
                LogFieldValue.java
    
> Incorrect outputSchema is invoked when overloading UDF in 0.9.1
> ---------------------------------------------------------------
>
>                 Key: PIG-2375
>                 URL: https://issues.apache.org/jira/browse/PIG-2375
>             Project: Pig
>          Issue Type: Bug
>    Affects Versions: 0.9.1
>            Reporter: Prashant Kommireddi
>             Fix For: 0.9.1
>
>         Attachments: LogFieldValue.java, LogFieldValues.java
>
>
> When overloading a UDF with getArgToFuncMapping() the parent/root UDF outputSchema()
is being called. 
> {code}
>   @Override
>     public List<FuncSpec> getArgToFuncMapping() throws FrontendException {
>         List<FuncSpec> funcList = new ArrayList<FuncSpec>();
>         Schema s = new Schema();
>         s.add(new Schema.FieldSchema(null, DataType.TUPLE));
>         s.add(new Schema.FieldSchema(null, DataType.CHARARRAY));
>         funcList.add(new FuncSpec(this.getClass().getName(), s));
>         Schema s1 = new Schema();
>         s1.add(new Schema.FieldSchema(null, DataType.TUPLE));
>         s1.add(new Schema.FieldSchema(null, DataType.TUPLE));
>         funcList.add(new FuncSpec(LogFieldValues.class.getName(), s1));
>         return funcList;
>     }
> {code}
> In the above function, "LogFieldValues" is used when the input is (tuple, tuple) but
the outputSchema() is invoked from the root UDF.

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