- SPARQL: If written explicitly in the SPARQL query, the regular expressions are now compiled once and not for each row.
- SPARQL: Property path evaluation with both start and end variables bound has been optimized.
- SPARQL: Casts to `xsd:decimal` from `xsd:float` and `xsd:double` now properly fails on overflow instead of overflowing the internal 128-bits representation.
This follows [XPath casting rules](https://www.w3.org/TR/xpath-functions/#casting-to-decimal).
This follows [XPath casting rules](https://www.w3.org/TR/xpath-functions-31/#casting-to-decimal).
- Rust: The minimal supported Rust version is set at 1.60 and enforced using the CI.
- Python: Local builds will now target the specific Python version instead of [abi3](https://docs.python.org/3/c-api/stable.html).
abi3 wheels are still released on Pypi alongside new Python-version specific builds for Linux+GNU.
@ -254,7 +254,7 @@
## [0.3.0-beta.1] - 2022-01-29
### Added
- [RDF-star](https://w3c.github.io/rdf-star/cg-spec) support. `Triple` is now a possible `Term`. Serialization formats and SPARQL support have been updated to match the [latest version of the specification draft](https://w3c.github.io/rdf-star/cg-spec/2021-07-01.html).
- [RDF-star](https://w3c.github.io/rdf-star/cg-spec/2021-12-17.html) support. `Triple` is now a possible `Term`. Serialization formats and SPARQL support have been updated to match the [latest version of the specification draft](https://w3c.github.io/rdf-star/cg-spec/2021-12-17.html).
- Fast data bulk load with the `Store``bulk_load_dataset` and `bulk_load_graph` methods and a special command line option of the server.
- It is now possible to quickly backup the database using the `backup` method.
- Rust: `*Syntax::from_extension` to easy guess a graph/dataset/sparql result format from a file extension.
@ -264,7 +264,7 @@
- `Store` operations are now transactional using the "repeatable read" isolation level:
the store only exposes changes that have been "committed" (i.e. no partial writes) and the exposed state does not change for the complete duration of a read operation (e.g. a SPARQL query) or a read/write operation (e.g. a SPARQL update).
the `Store``transaction` method now allows to do read/write transactions.
-`RDF-star <https://w3c.github.io/rdf-star/cg-spec>`_ is now supported (including serialization formats and SPARQL-star). :py:class:`.Triple` can now be used in :py:attr:`.Triple.object`, :py:attr:`.Triple.object`, :py:attr:`.Quad.subject` and :py:attr:`.Quad.object`.
-`RDF-star <https://w3c.github.io/rdf-star/cg-spec/2021-12-17.html>`_ is now supported (including serialization formats and SPARQL-star). :py:class:`.Triple` can now be used in :py:attr:`.Triple.object`, :py:attr:`.Triple.object`, :py:attr:`.Quad.subject` and :py:attr:`.Quad.object`.
### Changed
- SPARQL: It is now possible to compare `rdf:langString` literals with the same language tag.
@ -300,7 +300,7 @@ Many thanks to [Thad Guidry](https://github.com/thadguidry), [James Overton](htt
- [Turtle](https://www.w3.org/TR/turtle/), [TriG](https://www.w3.org/TR/trig/), [N-Triples](https://www.w3.org/TR/n-triples/), [N-Quads](https://www.w3.org/TR/n-quads/), and [RDF XML](https://www.w3.org/TR/rdf-syntax-grammar/) RDF serialization formats for both data ingestion and retrieval using the [Rio library](https://github.com/oxigraph/rio).
- [SPARQL Query Results XML Format](http://www.w3.org/TR/rdf-sparql-XMLres/), [SPARQL 1.1 Query Results JSON Format](https://www.w3.org/TR/sparql11-results-json/) and [SPARQL 1.1 Query Results CSV and TSV Formats](https://www.w3.org/TR/sparql11-results-csv-tsv/).
- [SPARQL Query Results XML Format](https://www.w3.org/TR/rdf-sparql-XMLres/), [SPARQL 1.1 Query Results JSON Format](https://www.w3.org/TR/sparql11-results-json/) and [SPARQL 1.1 Query Results CSV and TSV Formats](https://www.w3.org/TR/sparql11-results-csv-tsv/).
A preliminary benchmark [is provided](bench/README.md). There is also [a document describing Oxigraph technical architecture](https://github.com/oxigraph/oxigraph/wiki/Architecture).
* The `MemoryStore` class is now called `Store` (there is no other kind of stores...).
* RDF/JS datamodel functions (`namedNode`...) are now available at the root of the `oxigraph` package. You now need to call `oxigraph.namedNode` instead of `store.dataFactory.namedNode`.
* [RDF-star](https://w3c.github.io/rdf-star/cg-spec) is now implemented. `Quad` is now a valid value for the `Ωuad``subject` and `object` properties.
* [RDF-star](https://w3c.github.io/rdf-star/cg-spec/2021-12-17.html) is now implemented. `Quad` is now a valid value for the `Ωuad``subject` and `object` properties.
* [Turtle](https://www.w3.org/TR/turtle/), [TriG](https://www.w3.org/TR/trig/), [N-Triples](https://www.w3.org/TR/n-triples/), [N-Quads](https://www.w3.org/TR/n-quads/), and [RDF XML](https://www.w3.org/TR/rdf-syntax-grammar/) RDF serialization formats for both data ingestion and retrieval using the [Rio library](https://github.com/oxigraph/rio).
* [SPARQL Query Results XML Format](http://www.w3.org/TR/rdf-sparql-XMLres/), [SPARQL 1.1 Query Results JSON Format](https://www.w3.org/TR/sparql11-results-json/) and [SPARQL 1.1 Query Results CSV and TSV Formats](https://www.w3.org/TR/sparql11-results-csv-tsv/).
* [SPARQL Query Results XML Format](https://www.w3.org/TR/rdf-sparql-XMLres/), [SPARQL 1.1 Query Results JSON Format](https://www.w3.org/TR/sparql11-results-json/) and [SPARQL 1.1 Query Results CSV and TSV Formats](https://www.w3.org/TR/sparql11-results-csv-tsv/).
A preliminary benchmark [is provided](../bench/README.md). Oxigraph internal design [is described on the wiki](https://github.com/oxigraph/oxigraph/wiki/Architecture).
@ -11,7 +11,7 @@ OxRDF is a simple library providing datastructures encoding [RDF 1.1 concepts](h
This crate is intended to be a basic building block of other crates like [Oxigraph](https://crates.io/crates/oxigraph) or [Spargebra](https://crates.io/crates/spargebra).
Support for [RDF-star](https://w3c.github.io/rdf-star/cg-spec/) is available behind the `rdf-star` feature.
Support for [RDF-star](https://w3c.github.io/rdf-star/cg-spec/2021-12-17.html) is available behind the `rdf-star` feature.
OxRDF is inspired by [RDF/JS](https://rdf.js.org/data-model-spec/) and [Apache Commons RDF](http://commons.apache.org/proper/commons-rdf/).
/// The literal [datatype](https://www.w3.org/TR/rdf11-concepts/#dfn-datatype-iri).
///
/// The datatype of [language-tagged string](https://www.w3.org/TR/rdf11-concepts/#dfn-language-tagged-string) is always [rdf:langString](http://www.w3.org/1999/02/22-rdf-syntax-ns#langString).
/// The datatype of [simple literals](https://www.w3.org/TR/rdf11-concepts/#dfn-simple-literal) is [xsd:string](http://www.w3.org/2001/XMLSchema#string).
/// The datatype of [language-tagged string](https://www.w3.org/TR/rdf11-concepts/#dfn-language-tagged-string) is always [rdf:langString](https://www.w3.org/TR/rdf11-concepts/#dfn-language-tagged-string).
/// The datatype of [simple literals](https://www.w3.org/TR/rdf11-concepts/#dfn-simple-literal) is [xsd:string](https://www.w3.org/TR/xmlschema11-2/#string).
#[inline]
pubfndatatype(&self)-> NamedNodeRef<'_>{
self.as_ref().datatype()
}
/// Checks if this literal could be seen as an RDF 1.0 [plain literal](https://www.w3.org/TR/rdf-concepts/#dfn-plain-literal).
/// Checks if this literal could be seen as an RDF 1.0 [plain literal](https://www.w3.org/TR/2004/REC-rdf-concepts-20040210/#dfn-plain-literal).
///
/// It returns true if the literal is a [language-tagged string](https://www.w3.org/TR/rdf11-concepts/#dfn-language-tagged-string)
/// or has the datatype [xsd:string](http://www.w3.org/2001/XMLSchema#string).
/// or has the datatype [xsd:string](https://www.w3.org/TR/xmlschema11-2/#string).
#[inline]
pubfnis_plain(&self)-> bool{
self.as_ref().is_plain()
@ -510,8 +510,8 @@ impl<'a> LiteralRef<'a> {
/// The literal [datatype](https://www.w3.org/TR/rdf11-concepts/#dfn-datatype-iri).
///
/// The datatype of [language-tagged string](https://www.w3.org/TR/rdf11-concepts/#dfn-language-tagged-string) is always [rdf:langString](http://www.w3.org/1999/02/22-rdf-syntax-ns#langString).
/// The datatype of [simple literals](https://www.w3.org/TR/rdf11-concepts/#dfn-simple-literal) is [xsd:string](http://www.w3.org/2001/XMLSchema#string).
/// The datatype of [language-tagged string](https://www.w3.org/TR/rdf11-concepts/#dfn-language-tagged-string) is always [rdf:langString](https://www.w3.org/TR/rdf11-concepts/#dfn-language-tagged-string).
/// The datatype of [simple literals](https://www.w3.org/TR/rdf11-concepts/#dfn-simple-literal) is [xsd:string](https://www.w3.org/TR/xmlschema11-2/#string).
#[inline]
pubfndatatype(self)-> NamedNodeRef<'a>{
matchself.0{
@ -521,10 +521,10 @@ impl<'a> LiteralRef<'a> {
}
}
/// Checks if this literal could be seen as an RDF 1.0 [plain literal](https://www.w3.org/TR/rdf-concepts/#dfn-plain-literal).
/// Checks if this literal could be seen as an RDF 1.0 [plain literal](https://www.w3.org/TR/2004/REC-rdf-concepts-20040210/#dfn-plain-literal).
///
/// It returns true if the literal is a [language-tagged string](https://www.w3.org/TR/rdf11-concepts/#dfn-language-tagged-string)
/// or has the datatype [xsd:string](http://www.w3.org/2001/XMLSchema#string).
/// or has the datatype [xsd:string](https://www.w3.org/TR/xmlschema11-2/#string).
/// [op:add-yearMonthDuration-to-dateTime](https://www.w3.org/TR/xpath-functions/#func-add-yearMonthDuration-to-dateTime) and [op:add-dayTimeDuration-to-dateTime](https://www.w3.org/TR/xpath-functions/#func-add-dayTimeDuration-to-dateTime)
/// [op:add-yearMonthDuration-to-dateTime](https://www.w3.org/TR/xpath-functions-31/#func-add-yearMonthDuration-to-dateTime) and [op:add-dayTimeDuration-to-dateTime](https://www.w3.org/TR/xpath-functions-31/#func-add-dayTimeDuration-to-dateTime)
/// [op:subtract-yearMonthDuration-from-dateTime](https://www.w3.org/TR/xpath-functions/#func-subtract-yearMonthDuration-from-dateTime) and [op:subtract-dayTimeDuration-from-dateTime](https://www.w3.org/TR/xpath-functions/#func-subtract-dayTimeDuration-from-dateTime)
/// [op:subtract-yearMonthDuration-from-dateTime](https://www.w3.org/TR/xpath-functions-31/#func-subtract-yearMonthDuration-from-dateTime) and [op:subtract-dayTimeDuration-from-dateTime](https://www.w3.org/TR/xpath-functions-31/#func-subtract-dayTimeDuration-from-dateTime)
/// [op:add-yearMonthDuration-to-date](https://www.w3.org/TR/xpath-functions/#func-add-yearMonthDuration-to-date) and [op:add-dayTimeDuration-to-dateTime](https://www.w3.org/TR/xpath-functions/#func-add-dayTimeDuration-to-date)
/// [op:add-yearMonthDuration-to-date](https://www.w3.org/TR/xpath-functions-31/#func-add-yearMonthDuration-to-date) and [op:add-dayTimeDuration-to-dateTime](https://www.w3.org/TR/xpath-functions-31/#func-add-dayTimeDuration-to-date)
/// [op:subtract-yearMonthDuration-from-date](https://www.w3.org/TR/xpath-functions/#func-subtract-yearMonthDuration-from-date) and [op:subtract-dayTimeDuration-from-date](https://www.w3.org/TR/xpath-functions/#func-subtract-dayTimeDuration-from-date)
/// [op:subtract-yearMonthDuration-from-date](https://www.w3.org/TR/xpath-functions-31/#func-subtract-yearMonthDuration-from-date) and [op:subtract-dayTimeDuration-from-date](https://www.w3.org/TR/xpath-functions-31/#func-subtract-dayTimeDuration-from-date)
/// [op:add-yearMonthDurations](https://www.w3.org/TR/xpath-functions/#func-add-yearMonthDurations) and [op:add-dayTimeDurations](https://www.w3.org/TR/xpath-functions/#func-add-dayTimeDurations)
/// [op:add-yearMonthDurations](https://www.w3.org/TR/xpath-functions-31/#func-add-yearMonthDurations) and [op:add-dayTimeDurations](https://www.w3.org/TR/xpath-functions-31/#func-add-dayTimeDurations)
/// [op:subtract-yearMonthDurations](https://www.w3.org/TR/xpath-functions/#func-subtract-yearMonthDurations) and [op:subtract-dayTimeDurations](https://www.w3.org/TR/xpath-functions/#func-subtract-dayTimeDurations)
/// [op:subtract-yearMonthDurations](https://www.w3.org/TR/xpath-functions-31/#func-subtract-yearMonthDurations) and [op:subtract-dayTimeDurations](https://www.w3.org/TR/xpath-functions-31/#func-subtract-dayTimeDurations)
Sparesults is a set of parsers and serializers for [SPARQL](https://www.w3.org/TR/sparql11-overview/) query results formats.
It supports [SPARQL Query Results XML Format (Second Edition)](http://www.w3.org/TR/rdf-sparql-XMLres/), [SPARQL 1.1 Query Results JSON Format](https://www.w3.org/TR/sparql11-results-json/) and [SPARQL 1.1 Query Results CSV and TSV Formats](https://www.w3.org/TR/2013/REC-sparql11-results-csv-tsv-20130321/).
It supports [SPARQL Query Results XML Format (Second Edition)](https://www.w3.org/TR/rdf-sparql-XMLres/), [SPARQL 1.1 Query Results JSON Format](https://www.w3.org/TR/sparql11-results-json/) and [SPARQL 1.1 Query Results CSV and TSV Formats](https://www.w3.org/TR/sparql11-results-csv-tsv/).
Support for [SPARQL-star](https://w3c.github.io/rdf-star/cg-spec/#query-result-formats) is also available behind the `rdf-star` feature.
Support for [SPARQL-star](https://w3c.github.io/rdf-star/cg-spec/2021-12-17.html#query-result-formats) is also available behind the `rdf-star` feature.
This crate is intended to be a building piece for SPARQL client and server implementations in Rust like [Oxigraph](https://oxigraph.org).
* [Turtle](https://www.w3.org/TR/turtle/), [TriG](https://www.w3.org/TR/trig/), [N-Triples](https://www.w3.org/TR/n-triples/), [N-Quads](https://www.w3.org/TR/n-quads/), and [RDF XML](https://www.w3.org/TR/rdf-syntax-grammar/) RDF serialization formats for both data ingestion and retrieval using the [Rio library](https://github.com/oxigraph/rio).
* [SPARQL Query Results XML Format](http://www.w3.org/TR/rdf-sparql-XMLres/), [SPARQL 1.1 Query Results JSON Format](https://www.w3.org/TR/sparql11-results-json/) and [SPARQL 1.1 Query Results CSV and TSV Formats](https://www.w3.org/TR/sparql11-results-csv-tsv/).
* [SPARQL Query Results XML Format](https://www.w3.org/TR/rdf-sparql-XMLres/), [SPARQL 1.1 Query Results JSON Format](https://www.w3.org/TR/sparql11-results-json/) and [SPARQL 1.1 Query Results CSV and TSV Formats](https://www.w3.org/TR/sparql11-results-csv-tsv/).
* [SPARQL 1.1 Protocol](https://www.w3.org/TR/sparql11-protocol/#query-operation) and [SPARQL 1.1 Graph Store HTTP Protocol](https://www.w3.org/TR/sparql11-http-rdf-update/).
A preliminary benchmark [is provided](../bench/README.md).
@ -55,7 +55,7 @@ It provides the following REST actions:
curl -X POST -H 'Content-Type:application/sparql-query' \
This action supports content negotiation and could return [Turtle](https://www.w3.org/TR/turtle/), [N-Triples](https://www.w3.org/TR/n-triples/), [RDF XML](https://www.w3.org/TR/rdf-syntax-grammar/), [SPARQL Query Results XML Format](http://www.w3.org/TR/rdf-sparql-XMLres/) and [SPARQL Query Results JSON Format](https://www.w3.org/TR/sparql11-results-json/).
This action supports content negotiation and could return [Turtle](https://www.w3.org/TR/turtle/), [N-Triples](https://www.w3.org/TR/n-triples/), [RDF XML](https://www.w3.org/TR/rdf-syntax-grammar/), [SPARQL Query Results XML Format](https://www.w3.org/TR/rdf-sparql-XMLres/) and [SPARQL Query Results JSON Format](https://www.w3.org/TR/sparql11-results-json/).
* `/update` allows to execute SPARQL updates against the server repository following the [SPARQL 1.1 Protocol](https://www.w3.org/TR/sparql11-protocol/#update-operation).
For example:
```sh
@ -244,7 +244,7 @@ WantedBy=multi-user.target
### From 0.2 to 0.3
* The cli API has been completely rewritten. To start the server run `oxigraph_server serve --location MY_STORAGE` instead of `oxigraph_server --file MY_STORAGE`.
* Fast data bulk loading is not supported using `oxigraph_server load --location MY_STORAGE --file MY_FILE`. The file format is guessed from the extension (`.nt`, `.ttl`, `.nq`...).
* [RDF-star](https://w3c.github.io/rdf-star/cg-spec) is now implemented.
* [RDF-star](https://w3c.github.io/rdf-star/cg-spec/2021-12-17.html) is now implemented.
* All operations are now transactional using the "repeatable read" isolation level:
the store only exposes changes that have been "committed" (i.e. no partial writes)
and the exposed state does not change for the complete duration of a read operation (e.g. a SPARQL query) or a read/write operation (e.g. a SPARQL update).
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