define semantics of referring to a column within bytearray column
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Key: PIG-1997
URL: https://issues.apache.org/jira/browse/PIG-1997
Project: Pig
Issue Type: Task
Reporter: Thejas M Nair
When column x is of type bytearray, the semantics of x.$0 is not clear.
We need to define the behavior of this expression in the following cases -
1. Column type is bytearray and the actual object is DataByteArray.
2. Column type is bytearray and the actual object is either a Tuple or DataBag.
When the bytearray column is an object of type DataByteArray, pig runtime tries
to cast the object as a tuple and fails with a cast exception.
I am not sure of the current behavior if the bytearray column actually contains
a Tuple or DataBag object. (Needs to be tested).
This is related to PIG-1281 .
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