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https://issues.apache.org/jira/browse/CALCITE-2840?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zoltan Haindrich updated CALCITE-2840:
--------------------------------------
      Environment: 
because this could be interpreted as a regression - and results in less 
efficient plans; I've changed it to be a blocker
https://reviews.apache.org/r/69918/#comment298471
         Priority: Blocker  (was: Major)
    Fix Version/s: 1.19.0

> Simplification should use more specific UnknownAs modes during simplification
> -----------------------------------------------------------------------------
>
>                 Key: CALCITE-2840
>                 URL: https://issues.apache.org/jira/browse/CALCITE-2840
>             Project: Calcite
>          Issue Type: Improvement
>         Environment: because this could be interpreted as a regression - and 
> results in less efficient plans; I've changed it to be a blocker
> https://reviews.apache.org/r/69918/#comment298471
>            Reporter: Zoltan Haindrich
>            Assignee: Zoltan Haindrich
>            Priority: Blocker
>             Fix For: 1.19.0
>
>
> Some parts of this was already working in 1.17 ; but 1.18 turned out to be a 
> more conservative in this sense.



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