[OASIS Issue Tracker] (ODATA-944) Clarify scope of property paths in transformations

[OASIS Issues Tracker <workgroup_mailer@lists.oasis-open.org>]

Gerald Krause created ODATA-944:
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             Summary: Clarify scope of property paths in transformations
                 Key: ODATA-944
                 URL: https://issues.oasis-open.org/browse/ODATA-944
             Project: OASIS Open Data Protocol (OData) TC
          Issue Type: Improvement
          Components: OData Extension for Data Aggregation
    Affects Versions: V4.0_CS02
            Reporter: Gerald Krause
            Priority: Minor
             Fix For: V4.0_CSD04


Property paths in transformations always relate to the structure of the immediate input set, which is either the collection identified by the request resource path or the output of the preceding transformation. 
For some transformations, this has been specified explicitly, e.g. in section 3.1 for the aggregate transformation: “an expression valid in a $filter system query option on the input set”. But not for all, e.g. section 3.12 does not make a statement for the expand transformation. In order to avoid any possible misinterpretation or confusion, the document should spell this out clearly.




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