Hannah Bast
1. Externalize literals longer than 128 bytes (default is 1024 bytes). 2. Externalize all objects of the predicates and .
Whenever you encounter a query that you think should work (according to the SPARQL 1.1 standard) but throws an error message or gives an unexpected result, please post it here....
The following query produces an std:bad_alloc every time and returns a (wrongly) empty result. PREFIX p: PREFIX wd: SELECT ?statement WHERE { wd:Q873 p:P166 ?statement . FILTER regex(?statement, "^
This PR should not be merged into the master as is because some of it is ad-hoc (items 1 and 4) and some of it is just congifuration (item 3)....
In the following query, the result of the `{ SELECT * WHERE ... }` subquery is not taken from the cache, despite the maximal explicitness. One hypothesis is that the...
On UniProt, the following query takes over 2 seconds to join a 3,625,744,142 x 2 table with a 33 x 1 table. Shouldn't this be much faster? ``` PREFIX taxon:...
In many Operations, we have the following beginning and end of functions: ``` void Bind::computeRenameBind(IdTable* dynRes, const IdTable& inputDyn, size_t column) { const auto input = inputDyn.asStaticView(); auto res =...
The following query requires four minutes and a lot of memory. The runtime info shows a TRANSITIVE PATH operation costing 170 seconds, as well as a large UNION costing 60...
The following query is currenty executed with a very sub-optimal join order on Wikidata Full, more details on this below the query: ``` PREFIX schema: PREFIX wdt: SELECT ?sw ?so...
The following query takes 164 seconds on http://qlever.informatik.uni-freiburg.de/Wikidata_Full : ``` PREFIX rdf: PREFIX schema: SELECT ?x WHERE { ?x rdf:type schema:Article . FILTER regex(?x, "^