[ODATA-1025] Treatment of same query option in multiple "spellings" - OASIS Technical Committees Issue Tracker

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Proposal:

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In Section 5.1, System Query Options], of URL Conventions, change:

"The same system query option MUST NOT be specified more than once for any resource."

to:

"The same system query option, irrespective of casing or whether or not it is prefixed with "$", MUST NOT be specified more than once for any resource."

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In Section 5.1, System Query Options], of URL Conventions, change: "The same system query option MUST NOT be specified more than once for any resource." to: "The same system query option, irrespective of casing or whether or not it is prefixed with "$", MUST NOT be specified more than once for any resource."
Resolution:

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https://www.oasis-open.org/committees/download.php/60255/odata-v4.01-wd02-part2-url-conventions-2017-03-10.docx

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https://www.oasis-open.org/committees/download.php/60255/odata-v4.01-wd02-part2-url-conventions-2017-03-10.docx

V4.01 allows to omit the $ prefix for system query options and makes the query option name case-insensitive.

How should servers react if a request contains e.g. $top=5&Top=10

Should the request be rejected as the same (logical) query option appears twice, or should it succeed and $top is preferred over Top?

What if it contains top=5&TOP=10?