[OASIS Issue Tracker] (ODATA-1117) 4.01 services should support $select select option in Intermediate

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

Michael Pizzo created ODATA-1117:
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             Summary: 4.01 services should support $select select option in Intermediate
                 Key: ODATA-1117
                 URL: https://issues.oasis-open.org/browse/ODATA-1117
             Project: OASIS Open Data Protocol (OData) TC
          Issue Type: Bug
          Components: Protocol
    Affects Versions: V4.01_CSD02
         Environment: [Proposed]
            Reporter: Michael Pizzo
             Fix For: V4.01_CSD02


In OData-1105 we introduced $select options.  The initial motivation for this was to provide an alternate, more concise way to specify the subset of properties of a complex type that was consistent with $expand.  Arguably, this is how nested $select properties should have been done in 4.0.

Once we introduced the syntax that was more consistent with $expand, we also discovered that some of the $expand query options could quite naturally apply to collections of structural properties as well, and added things like $filter, $orderby, $search, etc.

When deciding where to put this new functionality in the conformance section, we made these new nested select options a SHOULD in 4.01 intermediate, and a MUST in 4.01 Advanced, since nesting $filter, $orderby, etc. within the $select represented new advanced functionality that we didn't want to make required in intermediate.

However, we kinda forgot the initial purpose of the issues, which was to provide a more concise and consistent syntax for selecting a subset of fields within a complex type.

In order for clients to reliably take advantage of this new syntax, that (for nested $select) doesn't introduce any additional functionality, we should make support for the 4.01 syntax be at the same level as the 4.0 syntax; that is, supporting $select as a select option should be required in intermediate for a 4.01 service.




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