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https://issues.apache.org/jira/browse/TAJO-1008?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14098545#comment-14098545
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Hyunsik Choi commented on TAJO-1008:
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Additionally, I refactored EvalNode to have {{childNum()}} and
{{getChild(idx)}} to make eval node traverse easier.
> Protocol buffer De/Serialization for EvalNode
> ---------------------------------------------
>
> Key: TAJO-1008
> URL: https://issues.apache.org/jira/browse/TAJO-1008
> Project: Tajo
> Issue Type: Sub-task
> Components: planner/optimizer
> Reporter: Hyunsik Choi
> Assignee: Hyunsik Choi
> Fix For: 0.9.0
>
>
> This patch includes de/serialization classes for EvalNode.
> This patch also inserts an unit test code to ExprTestBase to verify all eval
> nodes used in all unit tests inherented from ExprTestBase.
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