In the interest of avoiding any repeated effort, note that this was
also asked on Stack Overflow as:
http://stackoverflow.com/q/28611127/1281433

On Thu, Feb 19, 2015 at 11:44 AM, Chris Wood <c.c.w...@gmail.com> wrote:
> In the DBpedia SPARQL endpoint [1], running
>
> PREFIX dc: <http://purl.org/dc/elements/1.1/>
> PREFIX : <http://dbpedia.org/resource/>
> PREFIX dbpedia2: <http://dbpedia.org/property/>
>
> SELECT ?a (3+3 AS ?y)
> WHERE
> {
>    ?a dc:description "English footballer" .
>    ?a dbpedia2:placeOfBirth :Merseyside .
> }
>
> Shows all English Footballers who were born in Merseyside, with column y
> just displaying the value 6 on every row [result link]; however, the same
> query on the SNORQL endpoint displays an error:
>
> Virtuoso 37000 Error SP030: SPARQL compiler, line 16: syntax error at '3'
> before 'AS' SPARQL query: define sql:big-data-const 0 #output-
> format:application/sparql-results+json define input:default-graph-uri PREFIX
> owl: PREFIX xsd: PREFIX rdfs: PREFIX rdf: PREFIX foaf: PREFIX dc: PREFIX :
> PREFIX dbpedia2: PREFIX dbpedia: PREFIX skos: PREFIX pos: PREFIX dbo: SELECT
> ?a (3 3 AS ?y) WHERE { ?a dc:description "English footballer" . ?a
> dbpedia2:placeOfBirth :Merseyside . }
>
> Even more strangely, using any of the other 3 arithmetic operators does work
> in the SNORQL endpoint (e.g. with division [5])
>
> A previous question [6] on Stackoverflow has implied that the SPARQL and
> SNORQL endpoints should return the same result, so what's going on here?!
>
> Cheers,
> Chris
>
> 1: http://dbpedia.org/sparql/
> 2:
> http://dbpedia.org/sparql/?default-graph-uri=http%3A%2F%2Fdbpedia.org&query=++++PREFIX+dc%3A+%3Chttp%3A%2F%2Fpurl.org%2Fdc%2Felements%2F1.1%2F%3E%0D%0A++++PREFIX+%3A+%3Chttp%3A%2F%2Fdbpedia.org%2Fresource%2F%3E%0D%0A++++PREFIX+dbpedia2%3A+%3Chttp%3A%2F%2Fdbpedia.org%2Fproperty%2F%3E%0D%0A%0D%0A++++SELECT+%3Fa+%283%2B3+AS+%3Fy%29%0D%0A++++WHERE+%0D%0A++++%7B+%0D%0A+++++++%3Fa+dc%3Adescription+%22English+footballer%22+.%0D%0A+++++++%3Fa+dbpedia2%3AplaceOfBirth+%3AMerseyside+.%0D%0A++++%7D&format=text%2Fhtml&timeout=30000&debug=on
> 3:
> http://dbpedia.org/snorql/?query=PREFIX+pos%3A+%3Chttp%3A%2F%2Fwww.w3.org%2F2003%2F01%2Fgeo%2Fwgs84_pos%23%3E%0D%0APREFIX+dbo%3A+%3Chttp%3A%2F%2Fdbpedia.org%2Fontology%2F%3E%0D%0A%0D%0ASELECT+%3Fa+%283%2B3+AS+%3Fy%29%0D%0AWHERE+%0D%0A%7B+%0D%0A+++++%3Fa+dc%3Adescription+%22English+footballer%22+.%0D%0A+++++%3Fa+dbpedia2%3AplaceOfBirth+%3AMerseyside+.%0D%0A%7D
> 4: http://dbpedia.org/snorql/
> 5:
> http://dbpedia.org/snorql/?query=PREFIX+pos%3A+%3Chttp%3A%2F%2Fwww.w3.org%2F2003%2F01%2Fgeo%2Fwgs84_pos%23%3E%0D%0APREFIX+dbo%3A+%3Chttp%3A%2F%2Fdbpedia.org%2Fontology%2F%3E%0D%0A%0D%0ASELECT+%3Fa+%283%2F3+AS+%3Fy%29%0D%0AWHERE+%0D%0A%7B+%0D%0A+++++%3Fa+dc%3Adescription+%22English+footballer%22+.%0D%0A+++++%3Fa+dbpedia2%3AplaceOfBirth+%3AMerseyside+.%0D%0A%7D
> 6: http://stackoverflow.com/a/15658884/889604
>
>
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-- 
Joshua Taylor, http://www.cs.rpi.edu/~tayloj/

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