PigStorage() - need ability to turn off "Attempt to access field"  warnings

                 Key: PIG-784
                 URL: https://issues.apache.org/jira/browse/PIG-784
             Project: Pig
          Issue Type: Bug
            Reporter: David Ciemiewicz

I want an option to PigStorage() for LOAD which will allow me to turn off the 
"Attempt to access field" warnings.

Something like:

define PigStorage PigStorage("warn_load_nonexistent_field=off");

A = load 'mydata.txt' using PigStorage()
        as (col1: chararray, col2_optional: int, col3_optional: float);


A = load 'mydata.txt' using PigStorage("warn_load_nonexistent_field=0")
        as (col1: chararray, col2_optional: int, col3_optional: float);

If I have a very large data set with optional columns that are not populated 
(and have no tab separator), I'd like to just read the file as is and not 
generate the warnings.

The warnings are problematic because the fill up the logging output and every 
System.out.println will generate slow down the overall processing.  Especially 
if the data file being processed is missing one or more columns on every single 

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