TOBAG wraps tuple parameters in another tuple
---------------------------------------------
Key: PIG-2290
URL: https://issues.apache.org/jira/browse/PIG-2290
Project: Pig
Issue Type: Bug
Components: internal-udfs
Affects Versions: 0.9.0
Reporter: Ryan Hoegg
The TOBAG function indiscriminately wraps all parameters in a tuple. When I
pass a list of tuples to the function, I would expect it to return a bag
containing those tuples. Instead, it returns a bag containing single element
tuples, where each tuple contains one of the tuples passed in.
Example:
{code:title=tuples.txt}
(mike,608)
(ryan,11624)
(justin,2317)
{code}
{code:title=Demonstration using pig 0.9.0}
grunt> TUPLE_DATA = LOAD 'tuples.txt' AS
(T:tuple(name:chararray,street_number:int));
grunt> BAGGED = FOREACH TUPLE_DATA GENERATE TOBAG(T);
grunt> DESCRIBE BAGGED;
BAGGED: {{(name: chararray,street_number: int)}}
grunt> DUMP BAGGED;
({((mike,608))})
({((ryan,11624))})
({((justin,2317))})
{code}
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