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Subject: [OASIS Issue Tracker] Commented: (ODATA-25) Support Obtaining Changes (Deltas) from a result.

    [ http://tools.oasis-open.org/issues/browse/ODATA-25?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=32463#action_32463 ] 

Ralf Handl commented on ODATA-25:

Section 4.4.6 The odata.deltaLink Annotation states that

Expanded to-many navigation properties MAY be also annotated with this annotation.

I assume this is a copy&paste error and we have at most one deltaLink at the end of the top-level feed.

> Support Obtaining Changes (Deltas) from a result.
> -------------------------------------------------
>                 Key: ODATA-25
>                 URL: http://tools.oasis-open.org/issues/browse/ODATA-25
>             Project: OASIS Open Data Protocol (OData) TC
>          Issue Type: New Feature
>          Components: OData Protocol v1.0
>    Affects Versions: WD01
>         Environment: [Proposed]
>            Reporter: Michael Pizzo
>            Assignee: Michael Pizzo
>             Fix For: WD01
> Often times large sets of data have a relatively small number of changes throughout a given period of time. In such cases, clients typically want to see only the changes to the data without having to retrieve the entire large set of data, for example, to apply changes to a local set of results.
> The referenced presentation, presented at the first OData TC meeting in July, describes thoughts and requirements around a "delta" protocol to provide a hypermedia-driven solution for retrieving changes to a given set of data: https://www.oasis-open.org/apps/org/workgroup/odata/download.php/46575/OData%20Deltas.pptx.
> A complete proposal would define the specific changes to [OData-Core] to support deltas.

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