Hyunsik Choi created TAJO-1354:
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Summary: Remove json (de)serialization code for logical plan.
Key: TAJO-1354
URL: https://issues.apache.org/jira/browse/TAJO-1354
Project: Tajo
Issue Type: Improvement
Components: planner/optimizer
Reporter: Hyunsik Choi
in TAJO-269, I changed the (de)serialization ways to protocol buffer from json.
But, there are still legacy and obsolete code for json plan (de)serialization.
We need to clean them.
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