[OASIS Issue Tracker] (ODATA-1026) Clarify when $it is required

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     [ https://issues.oasis-open.org/browse/ODATA-1026?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ralf Handl updated ODATA-1026:
------------------------------

    Fix Version/s: V4.01_CSD02
                   V4.0_ERRATA04

> Clarify when $it is required
> ----------------------------
>
>                 Key: ODATA-1026
>                 URL: https://issues.oasis-open.org/browse/ODATA-1026
>             Project: OASIS Open Data Protocol (OData) TC
>          Issue Type: Improvement
>          Components: OData URL Conventions
>    Affects Versions: V4.0_OS
>            Reporter: Matthew Borges
>            Priority: Minor
>             Fix For: V4.01_CSD02, V4.0_ERRATA04
>
>
> The description of $it says it CAN be used in a number of cases (see section 5.1.11.4 in the URL conventions document) but it isn't specific about when $it MUST be used.  We should clarify when $it is required.  For example, my understanding is that both of these queries are equivalent (in which case the $it is not required):
> http://host/service/Customers?$filter=Orders/any(d:d/Quantity ge Age)
> vs.
> http://host/service/Customers?$filter=Orders/any(d:d/Quantity ge $it/Age)
> However, my understanding is that in the case below the $it is required:
> http://host/service/Customers?$expand=Orders($filter=$it/Address/City eq ShipTo/City)



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