[jira] [Created] (TAJO-1533) Provide hint to children execs whether it will require rescan on them

[Navis (JIRA)]

Navis created TAJO-1533:
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             Summary: Provide hint to children execs whether it will require 
rescan on them
                 Key: TAJO-1533
                 URL: https://issues.apache.org/jira/browse/TAJO-1533
             Project: Tajo
          Issue Type: Sub-task
            Reporter: Navis
            Assignee: Navis
            Priority: Minor


NLJoins uses rescan on right child. let's make it explicit.



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