odata message

Subject: [OASIS Issue Tracker] Created: (ODATA-622) Allow comparison of geo types, binary to null.

From: OASIS Issues Tracker <workgroup_mailer@lists.oasis-open.org>
To: odata@lists.oasis-open.org
Date: Wed, 12 Mar 2014 18:27:11 +0000 (UTC)

Allow comparison of geo types, binary to null.
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                 Key: ODATA-622
                 URL: http://tools.oasis-open.org/issues/browse/ODATA-622
             Project: OASIS Open Data Protocol (OData) TC
          Issue Type: Improvement
          Components: OData Protocol , OData URL Conventions 
    Affects Versions: V4.0_OS
         Environment: [Proposed]
            Reporter: Michael Pizzo
            Priority: Minor
             Fix For: V4.1_WD01


We currently prohibit the use of eq, ne with binary and geo values, as these values are typically not comparable.

However, it is valid to compare these values to null. This is handled in database systems, for example, by having "is null" and "is not null" operators, but since in OData we decided (after long debate) to use "eq null" and "ne null" to compare to null values (with appropriate null propagation rules) we inadvertently disallowed the common and useful case of comparing binary and geo values to null.

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