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

Ralf Handl created ODATA-1068:
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             Summary: 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
         Environment: Proposed
            Reporter: Ralf Handl


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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