[jira] [Updated] (CALCITE-3783) Rule to remove Join on top of empty Values

["Ruben Q L (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CALCITE-3783?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ruben Q L updated CALCITE-3783:
-------------------------------
    Issue Type: Bug  (was: Improvement)

> Rule to remove Join on top of empty Values
> ------------------------------------------
>
>                 Key: CALCITE-3783
>                 URL: https://issues.apache.org/jira/browse/CALCITE-3783
>             Project: Calcite
>          Issue Type: Bug
>          Components: core
>            Reporter: Ruben Q L
>            Assignee: Ruben Q L
>            Priority: Minor
>
> There are some scenarios where a Join with a left/right child being an empty values can be removed:
> - [ LEFT | INNER | SEMI | ANTI ]  JOIN(EmptyValues, X) => EmptyValues
> - [ INNER | SEMI ]  JOIN(X, EmptyValues) => EmptyValues
> - ANTI  (equi)JOIN(X, EmptyValues) => X
> The goal is to create new rule(s) (inside a new class named e.g. JoinRemoveRule) to match and cover these scenarios.



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