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Hi David,
I just have a question about the mappings. From what I see in this mapping file (https://github.com/oeg-upm/gtfs-bench/blob/master/mappings/gtfs-rdb.r2rml.ttl), gtfs:zone seems to be a d…
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There are a couple of `MUST` statements in the spec that depend on the actual data that could be revisited to support some kind of 'lenient' mode of processing the mapping document.
For example: I …
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- https://ontop-vkg.org/guide/getting-started.html#using-ontop
- https://github.com/oeg-upm/mapeathor
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So far, the ontology exists on Protégé. We can export it as XML, Turtle, RDF etc. files, although this is ineffective to work with: The modern web standard are JSON objects. Do we save the data as XML…
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considering the yarrrml document of https://github.com/RMLio/yarrrml-parser/issues/68 ,
the mapper doens't find the parenttriplesmap and instead uses its own logical source.
I believe two things sh…
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### Description
JSQL 3 does not have SQL support for json in Postgres. This causes issues with ontop when it tries to optimize the query (It actually worked fine until it suddenly started producin…
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The test case uses a column with type `CHAR(15)` containing values shorter than 15 characters, such as `'Venus'`. The expected output contains literals of length 15, with spaces added, e.g., `"Venus …
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# Why?
Currently SPARQL has a fairly robust extension function mechanism that allows for arbitrary functions to be referred to by URIs. This allows for vendors to implement useful extensions and f…
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Hi there,
When using `rr:template`, URIs are produced instead of IRIs: instead of for "A Bergström".
I am using [RMLMapper CLI](https://github.com/RMLio/rmlmapper-java/releases/download/v6.0.…