Pig needs an optimizer
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Key: PIG-262
URL: https://issues.apache.org/jira/browse/PIG-262
Project: Pig
Issue Type: New Feature
Components: impl
Reporter: Alan Gates
Assignee: Alan Gates
We need to add an optimizer to pig. This will enable us to do some traditional
optimizations, such as filter and projection pushing, join order and execution
choices, etc. It will also enable optimizations specific to map/reduce (such
as using the combiner).
The optimizer will need to operate at various levels, including the logical,
physical, and possibly map/reduce plan levels.
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