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https://issues.apache.org/jira/browse/CALCITE-5264?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ruben Q L updated CALCITE-5264:
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Description:
In CALCITE-3781, calcite can specify a hint for a relNode to let the planner
exclude some rule when optimze. But as [~julianhyde] sail, it's strange to only
check for the {{rels[0]}}. If we have a rule to push a common project to the
source scan, we want to prevent the common project optimized from the
ProjectMerge Rule, it can not work, as the preserved one is at the bottom.
So I proposal to check all the rels for the rule.
was:
In the https://issues.apache.org/jira/browse/CALCITE-3781, calcite can specify
a hint for a relNode to let the planner exclude some rule when optimze. But as
[~julianhyde] sail, it's strange to only check for the {{rels[0]}}. If we have
a rule to push a common project to the source scan, we want to prevent the
common project optimized from the ProjectMerge Rule, it can not work, as the
preserved one is at the bottom.
So I proposal to check all the rels for the rule.
> HintStrategy rule exclusion does not match innermost rels
> ---------------------------------------------------------
>
> Key: CALCITE-5264
> URL: https://issues.apache.org/jira/browse/CALCITE-5264
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Reporter: Aitozi
> Assignee: Aitozi
> Priority: Major
> Labels: pull-request-available
> Time Spent: 2h
> Remaining Estimate: 0h
>
> In CALCITE-3781, calcite can specify a hint for a relNode to let the planner
> exclude some rule when optimze. But as [~julianhyde] sail, it's strange to
> only check for the {{rels[0]}}. If we have a rule to push a common project to
> the source scan, we want to prevent the common project optimized from the
> ProjectMerge Rule, it can not work, as the preserved one is at the bottom.
> So I proposal to check all the rels for the rule.
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