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https://issues.apache.org/jira/browse/CALCITE-2736?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Julian Hyde resolved CALCITE-2736.
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    Fix Version/s: 1.28.0
       Resolution: Fixed

Fixed in 
[82dd78a1|https://github.com/apache/calcite/commit/82dd78a14f6aef2eeec2f9c94978d04b4acc5359];
 thanks for the PR, [~yingyu]! I fixed up your code for recent changes to 
{{ReduceExpressionsRule.Config}} in CALCITE-4830.

> ReduceExpressionsRule never reduces dynamic expressions but this should be 
> configurable
> ---------------------------------------------------------------------------------------
>
>                 Key: CALCITE-2736
>                 URL: https://issues.apache.org/jira/browse/CALCITE-2736
>             Project: Calcite
>          Issue Type: Improvement
>          Components: core
>            Reporter: Jacques Nadeau
>            Assignee: Jacques Nadeau
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.28.0
>
>          Time Spent: 2h
>  Remaining Estimate: 0h
>
> There are situations where it is helpful to reduce dynamic SqlCalls. Right 
> now, the ReduceExpressionsRule always avoids doing this. We should enhance 
> the rule so this can be configurable depending on where in planning the rule 
> is used.



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