[OASIS Issue Tracker] (ODATA-781) substring: what to return if the start index is outside the first argument string, or the desired length exceeds the remaining string length

[OASIS Issues Tracker <workgroup_mailer@lists.oasis-open.org>]

    [ https://issues.oasis-open.org/browse/ODATA-781?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=59529#comment-59529 ] 

Martin Zurmuehl commented on ODATA-781:
---------------------------------------

I like Evan's comment and the proposal --> re-opened the ticket to discuss in TC.

> substring: what to return if the start index is outside the first argument string, or the desired length exceeds the remaining string length
> --------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: ODATA-781
>                 URL: https://issues.oasis-open.org/browse/ODATA-781
>             Project: OASIS Open Data Protocol (OData) TC
>          Issue Type: Improvement
>          Components: OData URL Conventions
>    Affects Versions: V4.0_ERRATA02
>         Environment: [Proposed]
>            Reporter: Ralf Handl
>             Fix For: V4.0_ERRATA03
>
>
> 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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