TAJO-87: Integration of tajo algebra module and SQL parser
TAJO-87: Integration of tajo algebra module and SQL parser. (fixed tajo-project/pom.xml)
TAJO-87: Integration of tajo algebra module and SQL parser. (fixed tajo-dist/pom.xml)
Changed the organization of hyunsik.
TAJO-96: Design and implement rewrite rule interface and the rewrite rule engine. (hyunsik)
TAJO-102: Add AlgebraVisitor and Refactor LogicalPlanner to use the visitor. (hyunsik)
TAJO-95: Eliminate the lazy copy approach from the classes wrapping protobuf-generated classes. (hyunsik)