[OASIS Issue Tracker] (ODATA-1075) Introduce operator for checking whether a collection is a subset or equal to another collection

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

    [ https://issues.oasis-open.org/browse/ODATA-1075?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=66452#comment-66452 ] 

Ralf Handl commented on ODATA-1075:
-----------------------------------

Replaced "substring" with "length" when applying the issue. "Length" is natural, "substring" sounds odd when applied to collections as it does not return a string.

> Introduce operator for checking whether a collection is a subset or equal to another collection
> -----------------------------------------------------------------------------------------------
>
>                 Key: ODATA-1075
>                 URL: https://issues.oasis-open.org/browse/ODATA-1075
>             Project: OASIS Open Data Protocol (OData) TC
>          Issue Type: Bug
>          Components: URL Conventions
>    Affects Versions: V4.01_CSD02
>         Environment: Applying
>            Reporter: Ralf Handl
>            Assignee: Ralf Handl
>             Fix For: V4.01_CSD02
>
>
> Currently we "overload" the in operator to be "subset of" if the left operand is a collection.
> This would block us from introducing collections of collections, and checking whether a collection is an item of a collection of collections.



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