[PIG-73] Re-Design of Logical Plan

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.2.0
• Component/s: impl
• Assignee: Antonio Magnaghi
• Reporter: Antonio Magnaghi
• Created: 23/Jan/08 23:39
• Updated: 24/Mar/10 22:04
• Resolved: 20/Jan/09 22:47

Description

I am opening this new bug to track a specific work item within the broader context of improving Pig support for optimizations.
See related items:

• PIG-50 in the jira
• the design spec at: http://wiki.apache.org/pig/PigExecutionModel

In particular we want to remove from the logical plan those aspects that directly relate to the execution stage of a plan, hence improving decoupling. Currently EvalSpecs and Conds (and relative pipes) are tightly coupled with logical operators.

Issue Links

• is part of: PIG-157 Add types and rework execution pipeline