[OASIS Issue Tracker] Commented: (ODATA-513) Special handling of derived types in the dynamic expression edm:Record. Why?

[ http://tools.oasis-open.org/issues/browse/ODATA-513?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=34799#action_34799 ] 

Ralf Handl commented on ODATA-513:
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We seem to mix type inheritance with term specialization. Better separate these two concepts, see ODATA-535.

> Special handling of derived types in the dynamic expression edm:Record. Why?
> ----------------------------------------------------------------------------
>
>                 Key: ODATA-513
>                 URL: http://tools.oasis-open.org/issues/browse/ODATA-513
>             Project: OASIS Open Data Protocol (OData) TC
>          Issue Type: Bug
>          Components: OData CSDL
>    Affects Versions: V4.0_CS01
>         Environment: [Proposed]
>            Reporter: Martin Zurmuehl
>             Fix For: V4.0_CSD03
>
>
> We have defined a special handling of derived types in dynamic expression edm:Record:
> 14.5.14 Expression edm:Record
> The edm:Record expression enables a new entity type or complex type instance to be constructed.
> A record expression contains zero or more edm:PropertyValue elements. For each single-valued property of the record construct's type that is neither nullable nor specifies a default value an edm:PropertyValue child element MUST be provided. For derived types this rule applies only to properties directly defined by the derived type. For collection-valued properties the absence of an edm:PropertyValue child element is equivalent to specifying a child element with an empty collection as its value.
>  
> For me this special handling of the derived types looks superfluous. 

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