[OASIS Issue Tracker] (ODATA-1068) 3.12 Transformation expand: require at least two parameters, with innermost expansion requiring a filter()

[ https://issues.oasis-open.org/browse/ODATA-1068?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ralf Handl updated ODATA-1068:
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    Component/s: Extension for Data Aggregation

> 3.12 Transformation expand: require at least two parameters, with innermost expansion requiring a filter()
> ----------------------------------------------------------------------------------------------------------
>
>                 Key: ODATA-1068
>                 URL: https://issues.oasis-open.org/browse/ODATA-1068
>             Project: OASIS Open Data Protocol (OData) TC
>          Issue Type: Bug
>          Components: Extension for Data Aggregation
>         Environment: Proposed
>            Reporter: Ralf Handl
>             Fix For: V4.0_CSD04
>
>
> An expand() transformation without a nested filter() is just a complicated identity transformation, so we should require a filter() for the innermost expand() transformation in a nested expand(). Outer and intermediate expand() don't need a filter() as they are necessary to reach the level where the filter() needs to be applied.



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