Hyunsik Choi created TAJO-199:
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             Summary: All relations in catalog must have data volume size.
                 Key: TAJO-199
                 URL: https://issues.apache.org/jira/browse/TAJO-199
             Project: Tajo
          Issue Type: Improvement
          Components: catalog, planner/optimizer, storage
            Reporter: Hyunsik Choi
             Fix For: 0.2-incubating


Some relations generated in specific file format like RCFile and Trevni may 
have 0 bytes as a data volume. In order to use data volume as some factor in 
query optimization, we need to force all relations to have exact data volume.

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