[OASIS Issue Tracker] (ODATA-901) substring: Define negative index for substring function

[ https://issues.oasis-open.org/browse/ODATA-901?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michael Pizzo updated ODATA-901:
--------------------------------

    Fix Version/s: V4.01_WD01
                       (was: V4.0_ERRATA03)

> substring: Define negative index for substring function
> -------------------------------------------------------
>
>                 Key: ODATA-901
>                 URL: https://issues.oasis-open.org/browse/ODATA-901
>             Project: OASIS Open Data Protocol (OData) TC
>          Issue Type: Improvement
>          Components: OData URL Conventions
>    Affects Versions: V4.0_ERRATA02
>         Environment: [Proposed]
>            Reporter: Ralf Handl
>            Assignee: Ralf Handl
>             Fix For: V4.01_WD01
>
>
> This could be a "bad request" returning no results at all, or it could evaluate to null, which may just lead to excluding the offending instance from the result.
> Or a mix of both: negative start index is "bad request", start index or desired length beyond the end of the first argument is "null".



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