[jira] [Commented] (CALCITE-5708) SUBSTRING validation error if any parameter is a NULL literal

["Gian Merlino (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CALCITE-5708?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17740235#comment-17740235 ] 

Gian Merlino commented on CALCITE-5708:
---------------------------------------

Committed in https://github.com/apache/calcite/commit/39e5c764e76f46ec2ff960c07bb72dc370c747fc.

> SUBSTRING validation error if any parameter is a NULL literal
> -------------------------------------------------------------
>
>                 Key: CALCITE-5708
>                 URL: https://issues.apache.org/jira/browse/CALCITE-5708
>             Project: Calcite
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 1.34.0
>            Reporter: Evgeny Stanilovsky
>            Assignee: Evgeny Stanilovsky
>            Priority: Major
>              Labels: patch-available, pull-request-available
>             Fix For: 1.35.0
>
>
> According to standard:
> {noformat}
> 6.18 <string value function>
> ...
> 3)If <character substring function> is specified, then:
> ...
> c) If either C, S, or L is the null value, then the result of the <character substring function> is
> the null value.
> {noformat}
> calcite not follow this rule for now.



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