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Posted to issues@tajo.apache.org by "Hyunsik Choi (JIRA)" <ji...@apache.org> on 2014/02/19 17:12:27 UTC

[jira] [Created] (TAJO-610) Refactor Column class

Hyunsik Choi created TAJO-610:
---------------------------------

             Summary: Refactor Column class
                 Key: TAJO-610
                 URL: https://issues.apache.org/jira/browse/TAJO-610
             Project: Tajo
          Issue Type: Bug
          Components: catalog
            Reporter: Hyunsik Choi
            Assignee: Hyunsik Choi
             Fix For: 0.8-incubating


Column class has some ambiguous methods and some complex logics.

This patch simplifies and refactors Column class as follows:
 * Rename getColumnNum() to size()
 * Remove qualifier variable from Column and ColumnProto
 * Rename getColumnName to getSimpleName
 * Move some codes for qualification and simple name to CatalogUtil and refactor them for common identifiers including database, table and column names
 * Change Column as an immutable object



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