SPARQL construct chunked

Transformer, allows the user to transform chunked RDF data using a CONSTRUCT query. This means that based on the input data, output data will be generated using this query, preserving the data chunking.

SPARQL CONSTRUCT query: Query for transformation of triples

Characteristics

ID: t-sparqlconstructchunked
Type: transformer
Inputs: RDF single graph - Configuration; RDF chunked - Input
Outputs: RDF chunked
Look in pipeline

The SPARQL construct chunked component queries input data using a SPARQL CONSTRUCT query, producing new data on the output. This component works with chunked RDF data, executing the query separately on each chunk, which can save considerable amounts of resources, both time and consumed memory. It can be configured at runtime using RDF configuration, which can be generated by another component. Chunked RDF data is produced e.g. by Files to RDF chunked, SPARQL endpoint chunked or Tabular chunked.

Runtime configuration

Below you can see sample runtime configuration for the component. Note that RDF blank nodes are not allowed in runtime configurations.

@prefix sc: <http://plugins.linkedpipes.com/ontology/t-sparqlConstruct#> .

<http://localhost/config> a sc:Configuration ;
    sc:query "CONSTRUCT { ?s ?p ?o } WHERE { ?s ?p ?o}" .