Matthias Boehm created SYSTEMML-929:

             Summary: Enable frame csv reblock
                 Key: SYSTEMML-929
             Project: SystemML
          Issue Type: Task
            Reporter: Matthias Boehm
            Assignee: Matthias Boehm

We aim to support the old file-based transform and the new frame-based 
transform at the same time. Both are isolated at compiler/runtime level with 
separate builtin functions. However, the file-based transform directly consumes 
csv files, while the frame-based transform requires a normal csv reblock as 
done for matrices. 

This task will enable the internal flag to inject csv reblocks for frame csv 
inputs. To support the old transform, we disable this flag whenever a transform 
call is encountered during compilation - the implication is that the file-based 
transform and the frame-based transform (over csv files) cannot be used in a 
mixed manner in a single script.

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