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https://issues.apache.org/jira/browse/CALCITE-2851?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16770744#comment-16770744
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Yuzhao Chen commented on CALCITE-2851:
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Sounds reasonable if we can identify multiple matched rules for same node, if
we can have such info, some simplification may be possible, we may promotion
the planning time.
> Simplification: track visited nodes in paranoid mode
> ----------------------------------------------------
>
> Key: CALCITE-2851
> URL: https://issues.apache.org/jira/browse/CALCITE-2851
> Project: Calcite
> Issue Type: Improvement
> Reporter: Zoltan Haindrich
> Assignee: Zoltan Haindrich
> Priority: Major
>
> Idea is to have an object which could track all the visited nodes, goal is to
> identify if we have rules which are about to re-visit a previously visited
> node again.
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