[OASIS Issue Tracker] (ODATA-1255) Correct usage of $count

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

Gerald Krause created ODATA-1255:
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             Summary: Correct usage of $count
                 Key: ODATA-1255
                 URL: https://issues.oasis-open.org/browse/ODATA-1255
             Project: OASIS Open Data Protocol (OData) TC
          Issue Type: Bug
          Components: Data Aggregation
    Affects Versions: V4.0_CS02
         Environment: Proposed
            Reporter: Gerald Krause
             Fix For: V4.0_CSD04


Section 3.1 introduces $count as one of several options for aggregate expressions.

Example 57 applies $count relative to a collection-valued navigation property, which is a different use case that is backed by the commonExpr ABNF rule to address the count of a collection (see URL spec, section 4.8). Since section 3.1 requires commonExpr to be augmented with an aggregation method, such a method must be added to the request in the example.

The current aggregation ABNF contains a rule for $count with a path prefix, which needs to be cleaned up accordingly.



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