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From "Alan Gates (JIRA)" <j...@apache.org>
Subject [jira] Created: (PIG-262) Pig needs an optimizer
Date Tue, 10 Jun 2008 17:32:44 GMT
Pig needs an optimizer

                 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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