Copyright (c) 2005 - 2017 Franz, Incorporated

Last updated 15 February 2017 at 21:27

• Documentation Index
  • Release Notes
  • Quick Start
  • Introduction
  • Setup and Configuration
    • Download
    • Server Installation
    • Server Configuration and Control
    • WebView
    • Database Upgrading
  • Server Management
    • Performance Tuning
    • Deleting Duplicate Triples
    • Purging Deleted Triples
    • Auditing
    • Replication
    • Point-in-Time Recovery
    • Transaction Log Archiving
    • Security Overview
    • Security Implementation
  • Tools
    • Data Loading
    • Data Export
    • Backup and Restore
    • Querying
    • RDFS++
    • Materializer
  • Details
    • AllegroGraph Indices
    • Full-text Indices
    • Encoded IDs
    • Connection Pooling
    • N-dimensional Geospatial Overview
    • 2-D Geospatial
    • Temporal
    • Social Network
    • JavaScript
    • Datatypes
    • Data Conversion (Rapper)
    • Stored Procedures
    • Triple Attributes
  • Querying
    • SPARQL documentation summary
    • SPARQL Reference
    • SPIN
    • SPARQL Magic Properties
    • Prolog
  • 3rd-party tools
    • Solr text Indices
    • MongoDB integration
    • Callimachus support
    • TopBraid Composer Plugin
    • Cloudera
  • Client APIs
    • Gruff
    • REST/HTTP interface
    • HTTP reference
    • Javadocs (Sesame and Jena)
    • Python API
    • Lisp Reference
    • JavaScript
  • Tutorials
    • N-dimensional Geospatial
    • SPARQL Tutorial
    • Java Sesame
    • Java Jena
    • Python Sesame
    • Lisp
    • Prolog
    • More...
  • Other
    • Suggested Reading
    • Conferences and Seminars
    • Source Code on Github
    • Community Resources
    • Amazon EC2
    • Copyrights
    • Change History
  • Franz, Inc.

Introduction

AllegroGraph provides support for

• SPARQL 1.1 Query,
• SPARQL 1.1 Update,
• SPARQL 1.1 Federated Query,
• SPARQL 1.1 Query Results JSON Format,
• SPARQL 1.1 Query Results CSV and TSV Formats,
• SPARQL Query Results XML Format (Second Edition)

It does not directly support entailment regimes but AllegroGraph's RDFS++ reasoner or OWL Materializer can be used to support inference.

Note that AllegroGraph does not support the Graph Store HTTP Protocol. All of the functionality in this protocol can be achieved using SPARQL Query and Update).

SPARQL functions

Aside from the following caveats, AllegroGraph's SPARQL engine supports all of the functions in the specification.

• we do not yet support the timezone or tz datetime functions

• the BNODE function only works correctly in the no argument case

DAWG test failures

• AllegroGraph encodes numbers and dates directly rather than storing them as strings. This means that the following literals will all encode the same way: "+1"^^xsd:integer, "1"^^xsd:integer, and "0001"^^xsd:integer. DAWG tests that rely on non-canonical values being able to round-trip will fail.

If you find any other problems (with conformance or performance) please let us know by e-mailing support.