rdf4j

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### Current Behavior ```java @Override public long size(Resource... contexts) throws RepositoryException { try (RepositoryResult stmts = getStatements(null, null, null, true, contexts)) { long i = 0; while (stmts.hasNext()) { stmts.next();...

JervenBolleman

PR Author Checklist (see the [contributor guidelines](https://github.com/eclipse/rdf4j/blob/main/CONTRIBUTING.md) for more details): - [X] my pull request is [self-contained](https://rdf4j.org/documentation/developer/merge-strategy/#self-contained-changes-pull-requests-and-commits) - [ ] I've added tests for the changes I made - [X]...

vorburger

### Problem description Currently, there exists SPARQLRepository.setAdditionalHTTPHeaders() to deal with custom headers required for interacting with certain stores. But, there is no equivalent for query parameters, and there is no...

pulquero

Rio JSON LD Jackson core/databind dependency problem

2

### Current Behavior [Here](https://github.com/enola-dev/enola/pull/495/files), I'm depending on `rdf4j-rio:rdf4j-rio-jsonld` (version `5.0.0-M2`, but I think this problem affects `4.3.9` as well; haven't tested). My `RdfTest` fails like this: ```java java.lang.NoClassDefFoundError: com/fasterxml/jackson/databind/ObjectMapper at...

vorburger

AggregateCollector.getFinalValue() doesn't take ValueFactory

3

### Problem description Currently, the custom aggregate function API makes it hard to implement functions like mean, std dev, etc where the final value is calculated/derived as there is no...

pulquero

Improve Shacl performance for large datasets

4

### Problem description When running SHACL validation on large datasets (5M triples) we've noticed that it takes up to 10 minutes to run a simple SHACL rule. ### Preferred solution...

ElenaKurilina

GitHub issue resolved: #4899 Briefly describe the changes proposed in this PR: Introduce a new MapDb3 backed queue implementation to the MapDb3CollectionFactory. This spills to disk onze the queue reaches...

JervenBolleman

MapDB3 based collection factory should provide a queue and set implementation

3

### Problem description [qEndpoint](https://github.com/the-qa-company/qEndpoint/issues/349) has an issue where a path query triggers an out of memory exception. See the makeQuey and makeSet calls in [PathIteration](https://github.com/eclipse-rdf4j/rdf4j/blob/develop/core/queryalgebra/evaluation/src/main/java/org/eclipse/rdf4j/query/algebra/evaluation/iterator/PathIteration.java). For the MapDb3 implementation we...

JervenBolleman

Investigate SPARQL CG Lateral proposal-006

13

### Problem description I would like to investigate how [LATERAL](https://github.com/w3c/sparql-12/blob/main/SEP/SEP-0006/sep-0006.md) could be implemented in RDF4j. ### Preferred solution _No response_ ### Are you interested in contributing a solution yourself? Yes...

JervenBolleman

Revert deleted deprecated code that is still in use by our users

hmottestad