[jira] [Commented] (CALCITE-7296) Improve simplification of IS (NOT) NULL

[Thomas Rebele (Jira)]

    [ 
https://issues.apache.org/jira/browse/CALCITE-7296?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18039606#comment-18039606
 ] 

Thomas Rebele commented on CALCITE-7296:
----------------------------------------

Test case:

{code}
    checkSimplify(isNull(cast(div(vIntNotNull(), literal(0)), tBigInt())),
        "IS NULL(/(?0.notNullInt0, 0))");
    checkSimplify(isNotNull(cast(div(vIntNotNull(), literal(0)), tBigInt())),
        "IS NOT NULL(/(?0.notNullInt0, 0))");
{code}

> Improve simplification of IS (NOT) NULL
> ---------------------------------------
>
>                 Key: CALCITE-7296
>                 URL: https://issues.apache.org/jira/browse/CALCITE-7296
>             Project: Calcite
>          Issue Type: Task
>            Reporter: Thomas Rebele
>            Assignee: Thomas Rebele
>            Priority: Major
>




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