Re: SEP2: Add Support Durations, Dates, and Times

On 17/02/2020 18:19, Gregory Williams wrote:
Hi John,

Thanks for the feedback.

On Feb 10, 2020, at 3:05 AM, John Snelson <John.Snelson@marklogic.com<mailto:John.Snelson@marklogic.com>> wrote:

Hi Jerven, Gregory,

Thanks for this! Looks like a good start. I can't open github issues
that aren't labelled "New Feature", which doesn't seem to fit the situation.

Here are my comments:

1) We should document the mapping of SPARQL function names to F&O
function names. For instance, I'm assuming YEAR(xs:date) maps to
fn:year-from-date().

I’m not opposed to this, but since the SEP does not include the exact language that would be applied to the spec, I didn’t think this was necessary. In a document that is proposing spec text (which this SEP could be updated to become), I would think the sections enumerating the function definitions (like YEAR in https://www.w3.org/TR/sparql11-query/#func-year) would include similar language to existing definitions (which do include reference references where appropriate).

Well, the SEP names functions and leaves us to assume what the functions should do. They need some definition, and I figured the easiest thing to do would be to point to existing definitions in F&O.

John

--
John Snelson, Principal Engineer              http://twitter.com/jpcs

MarkLogic Corporation                         http://www.marklogic.com