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Posted to issues@calcite.apache.org by "Xin Chen (Jira)" <ji...@apache.org> on 2023/06/06 07:48:00 UTC

[jira] (CALCITE-5733) simplify should also simplify for array type

    [ https://issues.apache.org/jira/browse/CALCITE-5733 ]


    Xin Chen deleted comment on CALCITE-5733:
    -----------------------------------

was (Author: JIRAUSER298666):
 I am currently not sure how to return a comparison instance for 'CAST (ARRAY...' here yet.
 !screenshot-3.png! 

> simplify should also simplify for array type
> --------------------------------------------
>
>                 Key: CALCITE-5733
>                 URL: https://issues.apache.org/jira/browse/CALCITE-5733
>             Project: Calcite
>          Issue Type: Improvement
>          Components: core
>    Affects Versions: 1.26.0, 1.34.0
>            Reporter: Xin Chen
>            Priority: Major
>              Labels: pull-request-available
>         Attachments: screenshot-1.png, screenshot-2.png, screenshot-3.png
>
>
> Simplification seem to not take into account that the specified field is of array type. In other words，it can simplify "a = 1 AND a = 2" to "false"，but can not simplify “a = [1,2] AND a = [2,3]” to "false". Obviously, was there no consideration given to the field type being an array？I found this issue while debugging the Flink SQL task.
> Link to 
> https://issues.apache.org/jira/browse/FLINK-32188.
> https://issues.apache.org/jira/browse/CALCITE-4364



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