SIZE should be algebraic when invoked on a bag ----------------------------------------------
Key: PIG-2255
URL: https://issues.apache.org/jira/browse/PIG-2255
Project: Pig
Issue Type: Bug
Reporter: Dmitriy V. Ryaboy
Assignee: Dmitriy V. Ryaboy
SIZE of a bag is equivalent to COUNT_STAR, and should get optimized accordingly.
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