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https://issues.apache.org/jira/browse/CALCITE-7219?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zhen Chen updated CALCITE-7219:
-------------------------------
    Description: Because the "getFDs" method exists outside the metadata API 
framework, it cannot leverage the existing caching infrastructure. Each 
invocation triggers a full recomputation, and this may occur repeatedly within 
a single metadata query operation. This architectural gap poses a serious 
performance risk.​  (was: Because the "getFD" smethod exists outside the 
metadata API framework, it cannot leverage the existing caching infrastructure. 
Each invocation triggers a full recomputation, and this may occur repeatedly 
within a single metadata query operation. This architectural gap poses a 
serious performance risk.​)

> Enhance Functional Dependency Computation Performance Through Advanced 
> Caching Mechanisms
> -----------------------------------------------------------------------------------------
>
>                 Key: CALCITE-7219
>                 URL: https://issues.apache.org/jira/browse/CALCITE-7219
>             Project: Calcite
>          Issue Type: Improvement
>          Components: core
>    Affects Versions: 1.40.0
>            Reporter: Zhen Chen
>            Priority: Major
>
> Because the "getFDs" method exists outside the metadata API framework, it 
> cannot leverage the existing caching infrastructure. Each invocation triggers 
> a full recomputation, and this may occur repeatedly within a single metadata 
> query operation. This architectural gap poses a serious performance risk.​



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