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From "Hyunsik Choi (JIRA)" <j...@apache.org>
Subject [jira] [Created] (TAJO-543) InsertNode and CreateTableNode should play their roles
Date Wed, 22 Jan 2014 03:28:19 GMT
Hyunsik Choi created TAJO-543:
---------------------------------

             Summary: InsertNode and CreateTableNode should play their roles
                 Key: TAJO-543
                 URL: https://issues.apache.org/jira/browse/TAJO-543
             Project: Tajo
          Issue Type: Improvement
          Components: planner/optimizer
            Reporter: Hyunsik Choi
            Assignee: Hyunsik Choi
             Fix For: 0.8-incubating


Currently, CreateTableNode and InsertNode are just intermediate representations. They are
rewritten to StoreTableNode. But, StoreTableNode does not contain some necessary fields, such
as output table, target table, target columns, overwrite flag and create table flag. So far,
these fields are kept in QueryContext.

This implementation causes unnecessary and complex rewrite of DistributedQueryHookManager.
As a result, it is hard to maintain and manage CREATE/INSERT plans.

The main objective of this issue is to improve LogicalPlanner to use CreateTableNode and InsertNode
throughout the planning phase and eliminate complex rewrite in DistributedQueryHookManager.



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