Release Notes¶
GraphDB release notes provide information about the features and improvements in each release, as well as various bug fixes. GraphDB’s versioning scheme is based on semantic versioning. The full version is composed of three components:
major.minor.patch
e.g., 9.3.2 where the major version is 9, the minor version is 3 and the patch version is 2.
Note
Releases with the same major and minor versions do not contain any new features. Releases with different patch versions contain fixes for bugs discovered since the previous minor. New or significantly changed features are released with a higher major or minor version.
GraphDB 9 includes the following components with their version numbers:
RDF4J
GraphDB Connectors
GraphDB Workbench
Their versions use the same semantic versioning scheme as the whole product, and their values are provided only as a reference.
GraphDB 9.5.1¶
Released: 13 January 2021
Component versions¶
RDF4J |
Connectors |
Workbench |
Ontop |
3.4.4 |
13.0.0 |
1.5.1 |
4.0.2 |
Important
Several non-critical bug fixes in GraphDB Engine, Workbench, and MongoDB connector
GraphDB Engine¶
Bug fixing¶
GDB-5344 Extra space in OpenID scope prevents Keycloak from working with GraphDB
GraphDB Workbench¶
Bug fixing¶
GDB-4864 RDF Mapping UI: Preview items for IRI cells should be links to the Workbench resource view
GDB-4912 RDF Mapping UI: Error during column autocomplete
GDB-5251 Case sensitive autocomplete in RDF Mapping API
GDB-5321 Better error messages when OpenID token can’t be used with GraphDB
GDB-5335 The SPARQL autocomplete does not display the hit snippet, which limits its use when applied to non-human readable URIs
GDB-5336 RDF Mapping UI: Cannot read the autocomplete indexes from the current active repository
GDB-5357 RDF Mapping UI: Console errors when opening an already created project
GraphDB 9.5.0¶
Released: 7 December 2020
Component versions¶
RDF4J |
Connectors |
Workbench |
Ontop |
3.4.4 |
13.0.0 |
1.5.0 |
4.0.2 |
Important
Data virtualization of a relational database with the Ontop framework. All GraphDB editions now support a new repository type initialized with an R2RML or OBDA descriptor file to access a relational database like IBM DB2, MySQL, Oracle, PostgreSQL, Microsoft SQL Server, H2, and Denodo as a virtual read-only RDF graph. The new virtual repositories allow both the SPARQL access to RDBMS with highly dynamic or impractical to transform data source, and the batch transformation of relational models into RDF when requiring reasoning or advanced query features like property paths.
A new user interface simplifies the management of the SQL views mapped to SPARQL queries for JDBC access. The interface guides the user in validating the SPARQL queries’ syntax and their mapping to SQL types. It supports the automatic suggestion of the SQL value mapping after a scan as a bonus feature.
Improved security and single sign-on support including OpenID authentication and OAuth authorization.
Important bug fixes and improvements:
Performance optimization boosting the performance of short-lived requests
Upgraded Connectors to Lucene 8.6.3, Solr 8.6.3, Elasticsearch 7.9.2
Added support for comparison operators and regex in Connector entity filter and fixes in the mapping of nested fields and field values
Important fixes in SHACL validation and the cluster support
Multiple fixes in the SPARQL support, such as: arbitrary-length path within OPTIONAL clause; the STRUUID() function now works in the cluster; the UUID() function now returns deterministic results
Upgraded to the latest RDF4J version 3.4.4
GraphDB Engine & Cluster¶
New features and improvements¶
GDB-4493 Optimize the remote join in federated queries by batching the value
GDB-4995 Enable virtual read-only SPARQL endpoint over RDBMS with Ontop framework
GDB-4497 Fix latest vulnerabilities found in GraphDB Engine & Workbench
GDB-4999 Single sign-on authentication over OpenID Connect protocol
GDB-5006 As an operation manager I need a mechanism to control the amount of memory when dealing with many repositories
GDB-5067 Upgrade RDF4J to the latest version (3.4.4)
GDB-5069 Improve SHACL reporting in cluster mode to obtain the SHACL schema
GDB-5072 As a user I want to configure OIDC authentication
GDB-5073 As a user I want to configure OAuth2 authorization
GDB-5163 Upgrade various libraries to newer versions
GDB-5195 Optimize queries with generation of many short-lived connections
GDB-5206 Expand SHACL transaction settings to work in cluster
Bug fixing¶
GDB-3043 Weird interaction of VALUES and federated query
GDB-4095 SHACL logging is duplicated upon clear all
GDB-4490 Runaway federated query cannot be stopped
GDB-4918 SHACL: the SHACL extension constraint dash:hasValueIn behaves differently for expanded and prefixed IRIs
GDB-4920 Support SPARQLStar updates
GDB-4979 ConcurrentModificationException in GraphDB cluster master node
GDB-5026 NPE when trying to use INSERT WHERE clause with nested triples
GDB-5053 UUID() sometimes yields same result over different query solutions
GDB-5054 Explain plan does not show SERVICE expressions
GDB-5066 STRUUID() in cluster returns non-deterministic results
GDB-5068 Trying to list rulesets returns only selected one for the current repository twice
GDB-5152 SPARQL Federation fails when GraphDB uses HTTP proxy
GDB-5177 ‘Alias has already been used’ exception with GraphDB in a cluster
GDB-5197 Inconsistency in the return results when using internal federation
GDB-5198 SHACL: invalid regexes lead to inability to insert any data in the repository
GDB-5209 Incorrect results returned by an arbitrary length property (ALB) path nested in optional clause
GDB-5221 NTLM authentication to a proxy does not work because of an old workaround
GDB-5223 Cluster client creates multiple instances of RDF4JProtocolSession and does not close them, which makes the heap grow until OOM error
GDB-5233 N-Quad parser does not handle base64-encoded RDF* triples
GDB-5262 ArrayIndexOutOfBoundsException after trying to compute RDFRank with filtering and without data in the repository
GraphDB Workbench¶
New features and improvements¶
GDB-4997 As a user I want to create, configure, and delete virtual repositories with GraphDB Workbench
GDB-5012 As a user I need a graphical UI and API to configure SPARQL to SQL views
Bug fixing¶
GDB-4143 OntoRefine creates files at a late point, which may cause them to stay on disk after Windows installation removal
GDB-4525 Searching for a deleted embedded triple will result in “no results” displayed in Raw Response tab
GDB-4749 OpenRefine does not save created projects properly when GraphDB is stopped
GDB-4753 OntoRefine memory leak
GDB-5028 RDF Mapping: Adding an unknown prefix in the prefix field will corrupt the mapper interface
GDB-5046 FreeAccess user should not be able to access OntoRefine functionality
GDB-5057 OntoRefine login is required for users/repository admins/admins when security is ON
GDB-5058 User login form is required when accessing OntoRefine with a free access user via URL redirection
GDB-5176 RDF Mapping interface does not work with “naked” prefix
GDB-5180 RDF-Mapping interface: Impossible to create blank nodes
GDB-5258 RDF Mapping: Cannot set a prefix through the edit window when property is ‘a’
GraphDB Connectors & Plugins¶
New features and improvements¶
GDB-5167 Upgrade Lucene, Solr (8.6.3) and Elasticsearch (7.9.2) in the connectors
GDB-5188 Introduce a flag in the Elasticsearch connector that makes field values always use arrays
GDB-5194 Add support for comparison operators and REGEX in plugin/connector expressions
Bug fixing¶
GDB-5178 Wrong mapping with more than one level of nested fields in Elasticsearch connectors
GraphDB 9.4.1¶
Released: 28 September 2020
Component versions¶
RDF4J |
Connectors |
Workbench |
3.3.1 |
12.1.1 |
1.4.1 |
Important
Several non-critical bug fixes in GraphDB Engine and Workbench
GraphDB Engine¶
Bug fixing¶
GDB-4964 Incorrect result from MINUS over solutions from SERVICE
GDB-4977 The process cannot access the file error when creating a second server report on Windows
GDB-4979 ConcurrentModificationException in GraphDB cluster master node
GDB-5013 Simultaneous requests for add user/edit user may lead to changes not being applied
GraphDB Workbench¶
Bug fixing¶
GDB-4497 Fix latest vulnerabilities found in GraphDB Workbench
GDB-4876 RDF Mapping: Namespace set as constant disappears
GDB-4946 RDF Mapping: Preview will not be generated for cells that have data if there is an empty cell before them in the mapping definition
GDB-4965 Login form not showing up
GDB-4982 Errors in the browser’s console using Class Relationship Diagram and Similarity Index pages
GDB-4983 My settings: count total results checkbox is not working properly
GraphDB 9.4.0¶
Released: 02 September 2020
Component versions¶
RDF4J |
Connectors |
Workbench |
3.3.1 |
12.1.1 |
1.4.0 |
Important
Visual interface to generate structured to RDF data mappings in OntoRefine. The new interface enables the users to quickly map structured data to common RDF vocabularies and the ontologies stored in the current repository. The mapping interface also preserves the support of cleaning with GREL transformations, reconciling data against external services and exporting the transformation for automating the updates.
RDF mapping API. The new RDF Mapping API allows fast and easy automation of data to RDF transformations. It supports data providers like an OpenRefine project or posted CSV stream over which the user can apply mappings developed with the visual interface or SPARQL.
SQL access to GraphDB over JDBC driver. GraphDB features fully functional SQL-based access. Users can register SQL views over SPARQL queries and the new SQL query engine will optimize their execution by pushing some of the complexity down into the SPARQL query.
Usability improvements. Users can monitor and abort their own queries without the admin role; share saved visual graphs with other or anonymous access users; RDF parsers load the repository default prefixes;
Important fixes. SHACL validation is also functional in the cluster and includes multiple extensions introduced by RDF4J 3.3.0; Improved cluster scalability when consuming large results.
GraphDB Engine & Cluster¶
New features and improvements¶
GDB-3150 SQL access over JDBC driver to GraphDB
GDB-4462 Visual interface to generate tabular to RDF data mappings in OntoRefine
GDB-4088 Upgrade to the latest OpenRefine 3.3 version
GDB-4773 Advertise HTTP Basic as supported authentication when security is enabled
GDB-4806 RDF mapping API with streaming support to transform tabular data into RDF
GDB-4838 Upgrade RDF4J to 3.3.1 version
GDB-4862 OntoRefine: Update the default list of reconciliation services
GDB-4899 SHACL Validation: Extend the supported transaction settings in GraphDB
Bug fixing¶
GDB-3944 DuplicateAliasException when evaluation a query with an internal federation request to the same repository
GDB-4304 RDF parsers fail to load the repository default prefixes instead of RDF4J’s hardcoded one
GDB-4692 Incorrect evaluation of queries with ALP and wildcards
GDB-4849 Cluster worker is blocked from reads when a query result is being consumed
GDB-4870 Cannot create a cluster with SHACL repositories
GDB-4874 Track read operations on the master instead of relying only on track records from workers
GDB-4881 SHACL Validation: Some configuration parameters are not parsed
GDB-4890 Interrupted queries with orderBy do not propagate QueryInterruptedException
GraphDB Workbench¶
New features and improvements¶
GDB-2088 As a user I want to select graph when I explore class hierarchy and dependencies
GDB-2179 As a user I want to share a visual graph with other users
GDB-4705 Users can manage their own queries in Query Monitoring
GDB-4950 Add SHACL transaction settings in the repository creation page
Bug fixing¶
GDB-3937 Error in Workbench trying to list JVM settings if changed
GraphDB 9.3.4¶
Released: 12 November 2020
Component versions¶
RDF4J |
Connectors |
Workbench |
3.2.0 |
12.1.0 |
1.3.2 |
Important
Several non-critical bug fixes in GraphDB Engine
GraphDB Engine¶
Bug fixing¶
GDB-4890 Interrupted queries with order by do not propagate QueryInterruptedException
GDB-5195 Optimize the memory allocation and the query execution of short lived getStatement and hasStatement API requests
GDB-5197 Inconsistency in the return results when using internal federation
GDB-5209 Incorrect results returned by an arbitrary length property path nested in optional clause
GraphDB 9.3.3¶
Released: 03 August 2020
Component versions¶
RDF4J |
Connectors |
Workbench |
3.2.0 |
12.1.1 |
1.3.2 |
Important
Several non-critical bug fixes in GraphDB Engine and Connectors
GraphDB 9.3.2¶
Released: 21 July 2020
Component versions¶
RDF4J |
Connectors |
Workbench |
3.2.0 |
12.1.0 |
1.3.2 |
Important
Several non-critical bug fixes in GraphDB Engine, Cluster and Plugins
GraphDB Engine¶
Bug fixing¶
GDB-4679 Wrong results returned from queries when two OPTIONAL patterns bind the same variable or OPTIONALs used in a singleton groups
GDB-4680 Filter with OR not handled correctly when literal constants came from BIND
GDB-4726 Slow query with OPTIONALs with multiple nesting
GDB-4735 Issue with evaluating queries with OPTIONAL-s in UNION-s and MINUS
GDB-4763 Incorrect handling of more than two alternatives in ALP
GraphDB Cluster¶
Bug fixing¶
GDB-4305 Unable to connect workers when creating a GraphDB cluster with proxy or docker
GraphDB 9.3.1¶
Released: 18 June 2020
Component versions¶
RDF4J |
Connectors |
Workbench |
3.2.0 |
12.1.0 |
1.3.2 |
Important
Several non-critical bug fixes in GraphDB Engine
GraphDB Engine¶
Bug fixing¶
GDB-4593 RDF/XML file format with .xml extension is not properly detected when file is imported in Serial mode
GDB-4609 Slow execution time of a query with language filter
GDB-4614 Statements patters with zero estimation are not placed on top of the evaluation
GDB-4617 Spring content negotiation interferes with GraphDB REST API when the URL ends in .com
GDB-4625 Incorrect evaluation of ALP that contains alternatives or is placed in UNION
GDB-4636 Health checks do not work when SHACL validation repository is ON
GraphDB 9.3.0¶
Released: 1 June 2020
Component versions¶
RDF4J |
Connectors |
Workbench |
3.2.0 |
12.1.0 |
1.3.1 |
Important
Substantial performance improvement of SPARQL property paths with new native support in GraphDB
Enabled configuration of an LDAP bind user to query directories without anonymous access
Upgraded Connectors to latest versions of Elasticsearch, Solr, and Lucene without known security vulnerabilities
Several non-critical bug fixes in GraphDB Engine, Plugins, and Connectors
GraphDB Engine¶
New features¶
GDB-4120 Enable the configuration of an LDAP bind user to query directories without anonymous access
GDB-4503 Optimized the performance of SPARQL property paths by implementing their support into the GraphDB query model
GDB-4521 Measure the performance of a query per TupleExpression and print the collected query’s execution time like ExplainPlan with added Measurement statistics
GDB-4567 Upgrade to RDF4J 3.2.0 version
Bug fixing¶
GDB-3912 “+” over property paths may returns nothing
GDB-4107 Audit log does not respect Request ID header within the cluster
GDB-4519 “Cannot visit sub-query’s vars” error during processing of FILTER EXISTS operators with either SERVICE, sub-select or property path
GDB-4532 Literals index may rebuild after a GraphDB restart
GDB-4561 External applications cannot obtain the transaction ID using RDF4J transactions API
GDB-4573 Filters may fail to correctly eliminate RDF* statements
GraphDB 9.2.1¶
Released: 11 May 2020
Component versions¶
RDF4J |
Connectors |
Workbench |
3.2.0-M1 |
12.0.3 |
1.3.1 |
Important
Several non-critical bug fixes in GraphDB Engine, Workbench, Plugins & Connectors
GraphDB Engine¶
Bug fixing¶
GDB-4483 FROM is much slower than the GRAPH clause because of an inefficient context index existence check
GDB-4501 Cached class hierarchy is not removed from cache on reload if new one is empty
GDB-4507 Storage tool cannot initialize some of the collections with 40 bits entity size
GraphDB 9.2.0¶
Released: 23 April 2020
Component versions¶
RDF4J |
Connectors |
Workbench |
3.2.0-M1 |
12.0.2 |
1.3.0 |
Important
GraphDB 9.2 now supports statement level annotations with RDF*/SPARQL*. They enable a more efficient representation of scores, weights, temporal restrictions, and provenance information. It also allows the implementation of all use cases native for the property graph model by fully supporting all its modeling primitives. GraphDB and the new RDF type reduce by over 40% the number of RDF statements, the loading time, and the required disk space to model complex graphs like Wikidata.
The semantic similarity indexes remain online during refresh. All clients will continue to hit the old similarity index version until the new one is fully functional and published.
The GraphDB Proof plugin can trace back the rules fired to derive a particular implicit statement.
Improved performance in the history log searches and diffs with the current state.
All third party open source libraries are upgraded to the newer version to avoid publicly known vulnerabilities.
RDF4J is upgraded to 3.2.0-M1 version, which includes the embedded triple type and new RDF* parsers and serializers.
GraphDB Engine & Cluster¶
New features¶
GDB-4244 As a database user I want to upgrade all GraphDB APIs to support RDF* formats
GDB-4245 As a database user I want to upgrade all GraphDB APIs to support SPARQL* queries
GDB-4390 Update the RDF4J to version 3.2.0-M1 with RDF*/SPARQL* support
Bug fixing¶
GDB-4352 Local codes of the language tags follow ISO 639/3166, where “en-US” is case insensitive but returned in this format
GDB-3586 Notification listener fails to notify listeners for transactionStarted and transactionCompleted events
GDB-3836 Fixed the default path to the .keystore in graphdb.properties file
GDB-4092 Batching multiple updates with internal federation generates causes an NPE and HTTP error 500
GDB-4222 Fixed a potential deadlock in the GlobalPageCache during the predicate statistics update
GDB-4369 Storage tool may not replace IRI consistently in all database collections
GraphDB Workbench¶
New features¶
GDB-4246 As a database user I want the Workbench to support RDF*/SPARQL* syntax highlighting and rendering
GDB-4248 Extend YASR table view to render SPARQL* results
GDB-4287 As a database user I need the Workbench to support the new MIME types so I can import and export RDF* data
GDB-4375 Upgrade graphdb.js library to support RDF*/SPARQL*
Bug fixing¶
GDB-4386 Fix the minimist reported security vulnerability in Workbench
GDB-4401 Missing status when creating a Connector in Workbench
GDB-4402 JS error when disconnecting cluster node in Workbench
GDB-4409 YASR: Cached custom styles leads to bad SPARQL results presentation
GraphDB Plugins & Connectors¶
New features¶
GDB-4136 Similarity plugin: The similarity index remains online during refresh
GDB-4165 Proof plugin: Release a new plugin to trace back the rules fired to derive a particular implicit statement
GDB-4173 Data versioning plugin: Improve the efficiency of queries like “All that is changed for a subject in a date interval”
GDB-4444 Allow multiple fields per connector instance to define the property chain as a single property $self
Bug fixing¶
GDB-4318 Querying the history log for the same subject twice returns fewer results than expected
GDB 9.1.1¶
Released: 21 January 2020
Component versions¶
RDF4J |
Connectors |
Workbench |
3.0.1 |
12.0.2 |
1.2.2 |
Important
Several non-critical bug fixes in GraphDB Engine, Plugins & Connectors
GraphDB Workbench¶
Bug fixing¶
GDB-4171 Product info JSON should not be visible in create similarity index page parameters
GraphDB Plugins & Connectors¶
Bug fixing¶
GDB-3030 Predication Similarity: OOM exception is thrown when trying to rebuild a failed index
GDB-4163 MongoDB plugin queries may hang
GDB-4172 Problem with score retrieval when ordering by a field in Lucene or Elasticsearch
GDB-4177 History plugin memory optimizations
GDB 9.1.0¶
Released: 19 January 2020
Component versions¶
RDF4J |
Connectors |
Workbench |
3.0.1 |
12.0.1 |
1.2.0 |
Important
GraphDB 9.2 now supports statement level annotations with RDF*/SPARQL*. They enable a more efficient representation of scores, weights, temporal restrictions, and provenance information. It also allows the implementation of all use cases native for the property graph model by fully supporting all its modeling primitives. GraphDB and the new RDF type reduce by over 40% the number of RDF statements, the loading time, and the required disk space to model complex graphs like Wikidata.
The semantic similarity indexes remain online during refresh. All clients will continue to hit the old similarity index version until the new one is fully functional and published.
The GraphDB Proof plugin can trace back the rules fired to derive a particular implicit statement.
Improved performance in the history log searches and diffs with the current state.
All third party open source libraries are upgraded to the newer version to avoid publicly known vulnerabilities.
RDF4J is upgraded to 3.2.0-M1 version, which includes the embedded triple type and new RDF* parsers and serializers.
GraphDB Engine & Cluster¶
New features¶
GDB-4017 Extend the supported authentication protocols with Kerberos
GDB-4026 As a solution architect, I want to use SHACL validation with GraphDB
GDB-4101 Upgrade to RDF4J 3.0.1
Bug fixing¶
GDB-3043 Weird interaction of VALUES and Federated
GDB-3480 Creating a backup without providing the trailing slash of the path fails
GDB-3774 Variables bound in Filter leak outside the Filter block
GDB-3800 Peering password protected masters with incorrect token does not generate any error messages
GDB-3804 DuplicateAliasException when using internal federation
GDB-3902 Abnormal behavior when a single OPTIONAL is an argument of a UNION
GDB-3911 Suboptimal owl2-rl rule implementation that handles owl:hasKey
GDB-3921 Nested OPTIONALs cause strange query results
GDB-3941 xsd:time queries with a timezone produce wrong results when running against a DB with no timezones
GDB-3943 Deadlock when evaluating a query with two SERVICE operators
GDB-3944 DuplicateAliasException when evaluating a query with internal federation request to same repository
GDB-3955 GraphDB Cluster stopped working because of dropped worker’s repository
GDB-4033 Federated query for single property fails
GDB-4071 Problem with newline in string literal when importing data using cURL
GDB-4084 Unbound variables in the SELECT cause performance degradation
GDB-4117 Removing owl:sameAs does not remove inferred statements
GDB-4141 Calling an unknown function in SPARQL does not throw an error and returns an empty binding
GDB-4150 Inconsistent behavior of backup between GraphDB editions
GDB-4154 OntoRefine Movies dataset cannot be inserted in GraphDB
GraphDB Workbench¶
New features and improvements¶
GDB-3694 Replace static libraries with their NPM versions
GDB-3864 Remove VersionUrlRewriteFilter as Workbench packages come with their own version hash
GDB-3874 Replace requires modules with standard es6 modules import/export
GDB-3885 Remove unused or empty stylesheets
GDB-3887 Implement and integrate rest clients
GDB-3888 Make use of utility classes/services
GDB-3890 Split Workbench bundle in more fine-grained pieces
GDB-3891 Optimize D3 library loading
GDB-3947 Invert module and component dependencies in Workbench
GDB-4053 Ask for and accept Kerberos authentication when using GraphDB Workbench
GDB-4153 Update Workbench libraries due to security risk reported by GitHub
Bug fixing¶
GDB-3699 Similarity index config is appended in the URL after cloning an existing index
GDB-3693 Resolve reported code quality issues in the Workbench
GDB-3810 Visual graph: advanced search is displayed in situations where Easy graph search should be used.
GDB-3898 Sending parallel queries to GDB Workbench links controller in GDB free results in a deadlock
GDB-3913 Graphs overview: cannot export graph’s contents from within the graph itself
GDB-3923 Missing remove icon in the cluster view
GDB-3924 Visual graph reports a strange 404 error when opening resource details
GDB-3939 Resource page is not loaded properly in Workbench
GDB-4050 Workbench: various overlaps in some sections of the Workbench
GDB-4085 Disabling sameAs from UI does not affect exported result set
GraphDB Connectors & Plugins¶
New features¶
GDB-3931 Implement change tracking plugin - a plugin that tracks data updates
GDB-3969 Implement GraphDB Plugin data for history and versioning
Bug fixing¶
GDB-3662 Improve the Connector error message when sorting over an empty index
GDB-3740 Similarity search query should be configurable without building similarity index
GDB-3904 Similarity search index does not preform special predicate validation properly, leading to “stuck” create index operations
GDB-3926 GeoSPARQL plugin displays wrong “current configuration” properties
GDB-3928 Propagate all ES connection errors to the Workbench
GDB-4079 Semantic vectors logs are left “open” when rebuilding a semantic vector, leading to a memory leak
GDB-4155 MongoDB connector raises Cannot cast org.bson.Document to java.util.List
GDB 9.0.0¶
Released: 30 September 2019
Component versions¶
RDF4J |
Connectors |
Workbench |
3.0.0 |
12.0.0 |
1.1.2 |
Important
The new release features a major redesign of the database Plugin API that simplifies the way to implement complex software logic next to the core database engine. Ontotext releases multiple plugins to the community as open source, demonstrating how to solve common tasks such as data virtualization (see MongoDB Plugin), a complex ranking of search results (see Autocomplete Plugin), new types of indexing (see GeoSPARQL plugin) and advanced graph analytics (see RDF Rank plugin).
GraphDB Workbench now becomes a separate open source project enabling the fast development of knowledge graph prototypes starting from the default AngularJS administrative interface. Furthermore, the product includes an open source graphdb.js driver optimized for Node.js and other rapid development frameworks.
GraphDB 9.0 supports OpenJDK 11. The product continues to support OpenJDK 8 for its existing clients, as well as every new Oracle Java Long Term Support (LTS) version.
The product continues to support the RDF open source community, and is now upgraded to RDF4J version 3.0.
GraphDB Engine¶
New features¶
GDB-3607 Move to OpenJDK and support for newer Java versions. Make OpenJDK 8 and 11 the officially tested and recommended Java versions
GDB-3649 Upgrade to RDF4J 3.0
Bug fixing¶
GDB-1416 Exceptions in query evaluation do not result in error messages
GDB-3494 GraphDB is trying to rollback non-existing transaction
GDB-3506 Concurrent requests for storage health checks may produce an error
GDB-3531 Exception executing simple query after PUT statements in a repo
GDB-3585 Suboptimal execution plan for construct with FILTER
GDB-3592 Deadlock when notification listeners are to be notified but they were garbage collected before that
GDB-3596 LiteralIndex failures within RepositoryRule
GDB-3643 Join of subqueries does not work correctly
GDB-3646 Error “Could not convert the query to our optimized model” reported during query evaluation containing MINUS
GDB-3703 Graph Replacement Optimization does not work with the Java API
GDB-3720 Compound transactions do not reflect change in size()
GDB-3830 OPTIONAL and Alt-prop-path causes mix-up of bindings
GDB-3843 Bulk update “getRealId() must be called in exclusive transaction or after precommit()”
GraphDB Workbench¶
New features¶
GDB-3619 Split Workbench code base from GraphDB and open source the UI code
GDB-3728 Extend Cypress tests to cover all functionalities of the Workbench
Bug fixing¶
GDB-3248 Visual graph: expanding nodes “over owl:sameAs” not working properly
GDB-3642 Visual graph UI missing buttons
GraphDB Plugins¶
New features¶
GDB-1801 Open source plugin API and plugins with developer examples
GDB-3308 Implement a way for plugins to know if they are in a cluster
GDB-3631 Plugin API: Redesign the plugin notification interfaces to handle the notifications about transactions
GDB-3633 Plugin API: Extend system info object passed at plugin initialization
GDB-3635 Plugin API: Add mechanism to access the fingerprint in plugins
GDB-3636 Plugin API: Cleanup unused parts of the Plugin API like GlobalViewOnData and MemoryConfigurable
GDB-3730 Update Plugin API, plugin location, and the Javadoc
GDB-3803 Open source the GeoSPARQL plugin
GDB-3806 Open source the RDF Rank plugin
GDB-3807 Open source the Autocomplete plugin
GDB-3808 Open source the Lucene FTS plugin
GDB-3813 Open source the GeoSpatial plugin
GDB-3814 Open source the Notifications Logger plugin
GDB-3815 Open source the MongoDB plugin
Bug fixing¶
GDB-3309 Asynchronous RDFRank build through SPARQL in cluster breaks the cluster
GDB-3453 Explain the slow performance for rebuilding GeoSPARQL on Kadaster repository
GDB-3511 GeoSPARQL: Creating a quad plugin with precision >24 will result in an error when trying to create a geohash plugin
GDB-3554 Similarity indices with training cycles use vector values from first iteration on search
GDB-3556 Cannot build predication similarity index over PubMed authors data
GDB-3584 Similarity text index -porterstemmer flag does not work
GDB-3599 Stopwords do not work with default analyzer in text similarity indices
GraphDB Connectors¶
New features¶
GDB-3582 Upgrade connectors to latest major releases of Lucene/Solr (8.x) and Elasticsearch (7.x)
Bug fixing¶
GDB-3816 Wrong exporting of ‘elasticsearchClusterSniff’ setting from Connectors view
GDB-3819 Viewing existing connectors does not show the values of options that were set by default value and not explicitly
GDB-3905 Repair does not work when repairing a connector marked as “incompatible” by being created by an older version