[OASIS Issue Tracker] (ODATA-954) Key-As-Segment for multi-part keys

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     [ https://issues.oasis-open.org/browse/ODATA-954?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ralf Handl updated ODATA-954:
-----------------------------

    Environment: New Query Capabilities  (was: Proposed)

> Key-As-Segment for multi-part keys
> ----------------------------------
>
>                 Key: ODATA-954
>                 URL: https://issues.oasis-open.org/browse/ODATA-954
>             Project: OASIS Open Data Protocol (OData) TC
>          Issue Type: Sub-task
>          Components: OData URL Conventions
>    Affects Versions: V4.0_ERRATA02
>         Environment: New Query Capabilities
>            Reporter: Ralf Handl
>             Fix For: V4.01_WD01
>
>
> Generalize the rules in ODATA-799 to allow key-as-segment notation also for multi-part keys.
> Example: an accounting document is identified by the company code, the year, and the (auto-incremented) document number:
>       <EntityType Name="AccountingDocument">
>         <Key>
>           <PropertyRef Name="CompanyCode" />
>           <PropertyRef Name="Year" />
>           <PropertyRef Name="DocumentNumber" />
>         </Key>
>       </EntityType>
> Taking into account the order of <PropertyRef> elements within the <Key> element a single accounting document can be identified as
>     GET AccountingDocuments/SAP/2016/4329043280
> An optional extension would be to treat the multi-part key as a "folder structure", i.e.
>     AccountingDocuments/SAP/2016
> would identify the subset of accounting documents for a company and year, and
>     AccountingDocuments/SAP
> would identify the subset of accounting documents for a company.
> Services could optionally support this as a shorthand for 
>    GET AccountingDocuments?$filter=CompanyCode eq 'SAP' and Year eq '2016'
> and
>    GET AccountingDocuments?$filter=CompanyCode eq 'SAP'



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