What subset of SPARQL Update is suited as a minimal requirement for the PATCH method?

[kjetilk]

A discussion on this was started in solid/specification#125 . From now, I suggest we take the detailed discussion in the panel, and report back into that issue as appropriate.

[kjetilk]

I think we need to understand the actual queries to see if they can be rewritten as the simplest SPARQL query forms, DELETE DATA and INSERT DATA.

I looked into rdflib, and found that it seems to look to see if a statement has a blank node, and therefore interpretes that as a quad pattern, and so uses a WHERE clause: https://github.com/linkeddata/rdflib.js/blob/master/src/update-manager.ts#L776-L797
The key to understand the requirement is therefore to see to what extent blank nodes are used in updates using rdflib.

[RubenVerborgh]

Crucial to mention here whether this is in the context of HTTP PATCH, versus when used with a (to be defined) query interface. I would suggest updating the title to change Solid into HTTP PATCH.

[kjetilk]

Allright!