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https://issues.apache.org/jira/browse/CALCITE-7086?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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weihua zhang updated CALCITE-7086:
----------------------------------
    Description: 
Many databases do not support the form of filtered aggregates. It would be 
helpful if we could implement a rule to convert the plan into a form that most 
databases can understand.

in 

  was:
Many databases do not support the form of filtered aggregates. It would be 
helpful if we could implement a rule to convert the plan into a form that most 
databases can understand.



> Implement a rule that performs the inverse operation of 
> AggregateCaseToFilterRule
> ---------------------------------------------------------------------------------
>
>                 Key: CALCITE-7086
>                 URL: https://issues.apache.org/jira/browse/CALCITE-7086
>             Project: Calcite
>          Issue Type: New Feature
>            Reporter: weihua zhang
>            Priority: Major
>
> Many databases do not support the form of filtered aggregates. It would be 
> helpful if we could implement a rule to convert the plan into a form that 
> most databases can understand.
> in 



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