Hyunsik Choi created TAJO-102:
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Summary: Add AlgebraVisitor and Refactor LogicalPlanner to use the visitor
Key: TAJO-102
URL: https://issues.apache.org/jira/browse/TAJO-102
Project: Tajo
Issue Type: Improvement
Components: planner/optimizer
Reporter: Hyunsik Choi
Assignee: Hyunsik Choi
Fix For: 0.2-incubating
This patch adds AlgebraVisitor that visits the relational operators of the algebra expressions
recursively. It is helpful for implementing unit tests and utility methods related to algebra
expressions.
In addition, this patch refactors LogicalPlanner class to be based on AlgebraVisitor. This
change improves the code readability.
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