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https://issues.apache.org/jira/browse/CALCITE-3661?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vladimir Sitnikov reassigned CALCITE-3661:
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    Assignee: Vladimir Sitnikov

> Derive rowCount statistics for tables in ReflectiveSchema that are based on 
> arrays/collections
> ----------------------------------------------------------------------------------------------
>
>                 Key: CALCITE-3661
>                 URL: https://issues.apache.org/jira/browse/CALCITE-3661
>             Project: Calcite
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 1.21.0
>            Reporter: Vladimir Sitnikov
>            Assignee: Vladimir Sitnikov
>            Priority: Major
>
> ReflectiveSchema is used quite common in Calcite tests, however, it misses 
> statistics, so every reflective table is assumed to have 100 rows which makes 
> it hard to understand if the optimizer is making reasonable decisions (e.g. 
> join ordering).



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