You need to have the events put in chronological order inside the database.
It is not the case in the Olaf's problem because the dates come from
different pages.
Bruno
Le 27/01/2022 à 14:48, James Heald a écrit :
Agreed. I don't think it's guaranteed that the GROUP_CONCAT will
respect the order of items it's given. (I believe this is a standing
well-known requested feature in SPARQL circles).
But yet, it seems to work.
eg here's a version of the previous query, sorted by longitude
https://w.wiki/4kXS
and the points *do* seem to be being joined together in the right order.
-- J.
On 27/01/2022 13:39, Bruno BELHOSTE wrote:
The real problem is how to order the events in the query according to
their dates in order to draw the line from one event place to the
next event place.
It is clearly not easy.
Best,
Bruno
Le 27/01/2022 à 14:04, James Heald a écrit :
You're looking for a query like this one, I think
https://w.wiki/4kW4
but adapted to your data.
All best,
James.
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