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https://issues.apache.org/jira/browse/CALCITE-3916?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17175077#comment-17175077
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Haisheng Yuan commented on CALCITE-3916:
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thanks for reporting, [~rubenql]. how is the scan operator with the specific
rel id generated?
> Support cascades style top-down driven rule apply
> -------------------------------------------------
>
> Key: CALCITE-3916
> URL: https://issues.apache.org/jira/browse/CALCITE-3916
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Reporter: Haisheng Yuan
> Assignee: Jinpeng Wu
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.24.0
>
> Time Spent: 15.5h
> Remaining Estimate: 0h
>
> Apply rules by leaf RelSet -> root RelSet order. For every RelNode in a
> RelSet, rule is matched and applied sequentially. No RuleQueue and
> DeferringRuleCall is needed anymore. This will make space pruning and rule
> mutual exclusivity check possible.
> Rule that use AbstractConverter as operand is an exception, to keep backward
> compatibility, this kind of rule still needs top-down apply.
> This should be done after CALCITE-3896.
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