Hi everyone,
Attached is a (very) preliminary document outlining a rough design we
are proposing for a cost-based optimizer for Pig.
This is being done as a capstone project by three CMU Master's
students (myself, Ashutosh Chauhan, and Tejal Desai). As such, it is
not necessarily meant for immediate incorporation into the Pig
codebase, although it would be nice if it, or parts of it, are found
to be useful in the mainline.

We would love to get some feedback from the developer community
regarding the ideas expressed in the document, any concerns about the
design, suggestions for improvement, etc.

Dmitriy, Ashutosh, Tejal

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