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Diffstat (limited to 'docs/reference')
| -rw-r--r-- | docs/reference/libtracker-sparql/sparql-and-tracker.md | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/docs/reference/libtracker-sparql/sparql-and-tracker.md b/docs/reference/libtracker-sparql/sparql-and-tracker.md index dc6ba79c6..78a39932f 100644 --- a/docs/reference/libtracker-sparql/sparql-and-tracker.md +++ b/docs/reference/libtracker-sparql/sparql-and-tracker.md @@ -262,3 +262,16 @@ this full-text search mechanism, by toggling the `tracker:fulltextIndexed` property on in the text `rdf:Property` instances. See the documentation on [defining ontologies](ontologies.html). + +## DESCRIBE queries + +The [SPARQL documentation](https://www.w3.org/TR/sparql11-query/#describe) +says: + +``` +The DESCRIBE form returns a single result RDF graph containing RDF data about resources. +``` + +In order to allow serialization to RDF formats that allow expressing graph information +(e.g. Trig), DESCRIBE resultsets have 4 columns for subject / predicate / object / graph +information. |