[OASIS Issue Tracker] Commented: (ODATA-405) Deep Updates (public comment c201305e00008)

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    [ http://tools.oasis-open.org/issues/browse/ODATA-405?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=33560#action_33560 ] 

Ralf Handl commented on ODATA-405:
----------------------------------

One problem we had with Deep Updates was that people weren't thrilled about including the complete after-image for all related entities, and we didn't see a simple way of expressing the delta of a collection of related entities.

Now we have invented a way for expressing deltas for the change-tracking feature, and I can imagine using this format for deep updates.

- Deep updates MUST use the PATCH verb
- Collections of related entities MUST be represented inline using the delta format with
-- entity representations for new entities
-- partial entity representations for changed entities
-- tombstones for deleted entites
-- link objects for new links
-- deleted-link objects for deleted links

Thoughts?

> Deep Updates (public comment c201305e00008)
> -------------------------------------------
>
>                 Key: ODATA-405
>                 URL: http://tools.oasis-open.org/issues/browse/ODATA-405
>             Project: OASIS Open Data Protocol (OData) TC
>          Issue Type: Improvement
>          Components: OData ATOM Format 
>    Affects Versions: V4.0_CSD01
>            Reporter: Stefan Drees
>             Fix For: V4.0_CSD02
>
>
> The public comment [c201305e00008](https://lists.oasis-open.org/archives/odata-comment/201305/msg00008.html) with title "Deep Updates" states:
> """
> In section   8.4 Deep Inserts of OData-Atom-Format-v4.0 it is stated that 
> "Deep inserts are not allowed in update operations using PUT or PATCH requests."
> This is a great pity, as supporting deep updates would enable the very common scenario of saving a document with its lines as a whole.
> Could it be possible to add this feature?
> """

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