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https://issues.apache.org/jira/browse/CALCITE-4224?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17192212#comment-17192212
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Stamatis Zampetakis commented on CALCITE-4224:
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Indeed such a method would be useful for debugging purposes but adding it in
the RelNode interface just for this reason does not seem very neat.
> Add an method for RelNode to output its tree digest like RelOptUtil.toString
> ----------------------------------------------------------------------------
>
> Key: CALCITE-4224
> URL: https://issues.apache.org/jira/browse/CALCITE-4224
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Reporter: Jiatao Tao
> Assignee: Jiatao Tao
> Priority: Minor
>
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