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https://issues.apache.org/jira/browse/CALCITE-4052?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17128761#comment-17128761
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Rui Wang commented on CALCITE-4052:
-----------------------------------
Also tries to make this JIRA as an umbrella to connect all efforts under
top-down optimization.
> Enable Top-down Optimization
> ----------------------------
>
> Key: CALCITE-4052
> URL: https://issues.apache.org/jira/browse/CALCITE-4052
> Project: Calcite
> Issue Type: Task
> Reporter: Rui Wang
> Priority: Major
>
> We can enable top-down opt globally by updating saffron.properties.
> Some tests will fail because top-down opt changes the output plan.
> The easiest way is to update those tests to make them match the output plan
> produced after top-down opt.
> Alternatively, we might change testing framework to verify two output plans:
> one for top-down opt, another for when top-down opt not enabled.
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