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https://issues.apache.org/jira/browse/CALCITE-4267?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17201878#comment-17201878
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Jiatao Tao commented on CALCITE-4267:
-------------------------------------

Hi [~zabetak], sorry for the late reply, here's the background: Clickhouse want 
us to help them opt SQL, so they needed a serialized RelNode, we give them the 
JSON format, but still miss some info to desc this plan(In Calcite, we need 
validator to desc this).

> Add filed "output" for RelJsonWriter.
> -------------------------------------
>
>                 Key: CALCITE-4267
>                 URL: https://issues.apache.org/jira/browse/CALCITE-4267
>             Project: Calcite
>          Issue Type: Improvement
>            Reporter: Jiatao Tao
>            Assignee: Jiatao Tao
>            Priority: Minor
>




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