[ https://issues.oasis-open.org/browse/ODATA-662?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ralf Handl updated ODATA-662:
-----------------------------
Environment: [Proposed]
> Allow usage of $apply as "Expand Option" in $expand
> ---------------------------------------------------
>
> Key: ODATA-662
> URL: https://issues.oasis-open.org/browse/ODATA-662
> Project: OASIS Open Data Protocol (OData) TC
> Issue Type: Improvement
> Components: OData Extension for Data Aggregation
> Affects Versions: V4.0_CS01
> Environment: [Proposed]
> Reporter: Martin Zurmuehl
> Fix For: V4.0_CSD03
>
>
> We haven't specified the usage of $apply as "Expand Option" in $expand.
> There are good use cases for $apply as an option of $expand (and it combines very well):
> GET Products?$expand=Sales($apply=aggregate(Amount with sum as Total))
> Returns all products, and the Sales navigation property value is a one-element array with the Total
> Means: per Product in top-level result inline result of
> GET Product(<key>)/Sales?$apply=aggregate(Amount with sum as Total)
> This is equivalent to the clumsier
> GET Products?$apply=groupby((<key properties of Product>,<all non-key structural properties of Product>),aggregate(Sales/(Amount with sum as Total))
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