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Subject: [OASIS Issue Tracker] Updated: (ODATA-166) Inconsistent lifted operators for $filter


     [ http://tools.oasis-open.org/issues/browse/ODATA-166?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ralf Handl updated ODATA-166:
-----------------------------

    Environment: [Applying]  (was: [Proposed])
       Assignee: Ralf Handl

> Inconsistent lifted operators for $filter
> -----------------------------------------
>
>                 Key: ODATA-166
>                 URL: http://tools.oasis-open.org/issues/browse/ODATA-166
>             Project: OASIS Open Data Protocol (OData) TC
>          Issue Type: Bug
>          Components: OData Protocol 
>    Affects Versions: V4.0_WD01
>         Environment: [Applying]
>            Reporter: Matthew Borges
>            Assignee: Ralf Handl
>            Priority: Minor
>             Fix For: V4.0_WD01
>
>
> I didn't see any mention of lifted operators in the working drafts.  We should define how each operator behaves when one (or both) operands is null.
> With that said, the V3 spec (section 2.2.3.6.1.1.5) is inconsistent with it's treatment of null:
> - For equality operators, null eq null is true and null eq <anything not null> is false (i.e. the result is true or false)
> - Any relational operators when compared with null are false (i.e. the result is true or false)
>    - This implies that null ge null and null le null is false which is inconsistent with null eq null is true
> - Logical operators treat null as false (i.e. the result is true or false)
> - Unary operators are null if the operand is null (i.e. in the case of not, the result is true, false, or null)

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