Thanks :-) 2014-10-13 7:41 GMT+02:00 Fabian Cretton <fabian.cret...@hevs.ch>:
> Nice. > For what it's worth, congratulation for the beautiful work and code > quality reached in Marmotta. > Fabian > > >>> Sebastian Schaffert <sebastian.schaff...@gmail.com> 10.10.2014 10:16 > >>> > Hi Fabian, > > there is an extensive collection of SPARQL tests in > libraries/kiwi/kiwi-sparql where we both use the complete collection of > Sesame standard tests (several 100) and 36 custom tests where we collected > SPARQL queries of varying complexity that had problems and compare them > with plain Sesame. I suggest adding all new tests there and not to the web > service tests. Apparently neither we nor Sesame has a test for Sum, though > ;-) > > org.apache.marmotta.kiwi.sparql.test.ComplexKiWiSparqlQueryTest > (subclassing the standard Sesame tests) > org.apache.marmotta.kiwi.sparql.test.KiWiSparqlJoinTest (our own tests > beyond the ones in Sesame) > > Testing the web service is also an option, but starting up the environment > takes much more time, so we only do few web service tests that mainly test > the REST protocol and functionality. > > Note that the SUM implementation currently has a problem in the case of > the sum being 0 because no values exist. In that case the implementation > will return null instead of 0.0 because the relational database returns > NULL (which we typically interpret as "not bound"). We would need a special > treatment for aggregation constructs here, but that might have side effects > I am not yet aware of. > > > Greetings, > > Sebastian > > 2014-10-10 9:07 GMT+02:00 Fabian Cretton <fabian.cret...@hevs.ch>: > >> I know it is easier to say than to do, but I suggest adding all >> supported SPARQL queries to the unit test: >> "org.apache.marmotta.platform.sparql.webservices.SparqlWebServiceTest.java" >> I guess those queries are just too "new" to be already there, but on >> the other hand I saw a first discussion about soon moving 3.3.0 to a >> realease if I'm not mistaken. >> Fabian >> >> >>> Sebastian Schaffert <sebastian.schaff...@gmail.com> 09.10.2014 16:54 >> >>> >> Can you update your git repository, build again and try again? building >> libraries/kiwi/kiwi-sparql should be enough in case you have a recent >> snapshot. Otherwise do a "mvn clean install -DskipTests" in the root >> directory to save time ;-) >> >> Greetings, >> >> Sebastian >> >> 2014-10-09 16:24 GMT+02:00 Sebastian Schaffert < >> sebastian.schaff...@gmail.com>: >> >>> It's a copy-paste bug. Class Cast Exception, fixing it now. >>> >>> Greetings, >>> >>> Sebastian >>> >>> 2014-10-09 16:08 GMT+02:00 Sebastian Schaffert < >>> sebastian.schaff...@gmail.com>: >>> >>>> SUM is implemented, of course. But sometimes the translation into SQL >>>> still yields invalid SQL queries. Turn on logging for SPARQL and check in >>>> the marmotta-debug log file. I can also try with my setup. >>>> >>>> I would also recommend you to update the latest snapshot of the >>>> repository, because there are many bug fixes especially in the SPARQL part. >>>> >>>> Greetings, >>>> >>>> Sebastian >>>> >>>> 2014-10-09 15:42 GMT+02:00 Fabian Cretton <fabian.cret...@hevs.ch>: >>>> >>>>> Hi, >>>>> Is SPARQL-sum implemented in the current version under developpment >>>>> (3.3.0) ? >>>>> I did refresh my fork two weeks ago, and this query doesnt' work: >>>>> prefix sdmx-measure: <http://purl.org/linked-data/sdmx/2009/measure#> >>>>> SELECT (SUM(?value) as ?valSum) WHERE { >>>>> ?obs sdmx-measure:obsValue ?value. >>>>> } >>>>> I have an error message in the interface: unknown exception while >>>>> evaluating SPARQL query >>>>> I can't see the logs right now (I have to check out why my logs no >>>>> more work since my last synchronisation) >>>>> But is "sum" implemented or not ? or maybe I do have a simple syntax >>>>> mistake ? >>>>> thank you for any help >>>>> Fabian >>>>> >>>> >>>> >>> >> >
