Regex: Case (in)sensitivity flag ignored

[Aklakan]

Select * {
?s a owl:Class . 
?s rdfs:label ?l
Filter(regex(str(?s), 'school', 'i'))
}

[amrapalijz]

(how) can I convert the literals into lower case during the conversion process? using fn:lower-case?

[patrickwestphal]

Don't know if there is a fn:lower-case built in, but you could also use Postgres' lower(...) function in the From query. Like so:

Create View foo As
  Construct {
    ?foo a Bar .
  }
  With
   ?foo = uri(blah: ?lower_sth)
  From
    [[SELECT lower(sth) AS lower_sth FROM sometable]]

[amrapalijz]

Prefix geo: http://geo.bio2rdf.org/
Prefix dcterms:http://purl.org/dc/elements/1.1/
Prefix rdf: http://www.w3.org/1999/02/22-rdf-syntax-ns#
Prefix rdfs: http://www.w3.org/2000/01/rdf-schema#
Prefix xsd: http://www.w3.org/2001/XMLSchema#
Prefix fn:http://aksw.org/sparqlify/

Create View Template geo As
Construct {
?s geo:gsmID ?l1.
?s geo:characteristic ?l2.
?s geo:characteristic ?l3.
}
With
?s = uri(concat("http://geo.bio2rdf.org/", ?1))
?l1 = plainLiteral(?1)
?l2 = plainLiteral(?2)
?l3 = plainLiteral(?3)

---

Above is my mapping file. I want to convert actually the literals (l2, l3) to lower case.