[OASIS Issue Tracker] (ODATA-1377) $all not available for rolling up named hierarchies

Gerald Krause created ODATA-1377:
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             Summary: $all not available for rolling up named hierarchies
                 Key: ODATA-1377
                 URL: https://issues.oasis-open.org/browse/ODATA-1377
             Project: OASIS Open Data Protocol (OData) TC
          Issue Type: Bug
          Components: Data Aggregation
    Affects Versions: V4.0_CS02
            Reporter: Gerald Krause
             Fix For: V4.0_CSD04


{{$all}} is defined in [3.10.2 Grouping with rollup and $all|http://docs.oasis-open.org/odata/odata-data-aggregation-ext/v4.0/cs02/odata-data-aggregation-ext-v4.0-cs02.html#_Toc435016584]. For unnamed leveled hierarchies it may be used to introduce a virtual root level that allows to aggregate over all specified hierarchy levels. In other words, this feature offers a âgrand totalâ for unnamed leveled hierarchies.

The feature is equally interesting for named hierarchies, where the hierarchy is specified by the qualifier of a LeveledHierarchy annotation. However, in this case, {{$al}}l cannot be expressed and thus no âgrand totalâ can be requested from a named hierarchy.

Note: The same issue exists for {{groupby((rollup(HierQual)),...)}}, if {{HierQual}} refers to a qualifier of an annotation with term {{RecursiveHierarchy}}, which is currently discussed in ODATA-1218.



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