[OASIS Issue Tracker] (ODATA-1002) Add build in functions operating on collections of primitive (and complex?) types

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    [ https://issues.oasis-open.org/browse/ODATA-1002?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=64287#comment-64287 ] 

Ralf Handl edited comment on ODATA-1002 at 11/14/16 10:41 AM:
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ODATA-556 defines an "in" operator that can be used to check if a string is an item of a collection of strings, e.g.

  'Red' in ListOfColors

assuming that ListOfColors has Type="Collection(Edm.String)".

We could generalize that to "subset of", e.g.

  ('Red','Blue') in ListOfColors



was (Author: handl):
ODATA-556 defines an "in" operator that can be used to check if a string is an item of a collection of strings, e.g.

  'Red' in ListOfColors

assuming that ListOfColors has Type="Collection(Edm.String)".


> Add build in functions operating on collections of primitive (and complex?) types
> ---------------------------------------------------------------------------------
>
>                 Key: ODATA-1002
>                 URL: https://issues.oasis-open.org/browse/ODATA-1002
>             Project: OASIS Open Data Protocol (OData) TC
>          Issue Type: New Feature
>          Components: OData ABNF Construction Rules, OData Protocol, OData URL Conventions
>    Affects Versions: V4.01_CSD02
>            Reporter: Hubert Heijkers
>
> I'm getting more asks for people wanting to filter against properties representing a collection of primitive type, most notably Collection(Edm.String).
> Things like equal to, not equal to and containing a value or subset are the operations that people are looking to do the most. The size of the array they can get around by using /$count.
> Short of coming up with something ourselves I was wondering if this is a more generic ask and if we could maybe guide implementations as to how to support this kind of functionality in a more generic way.  



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