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DBMS > OpenMLDB vs. PostGIS vs. RDFox vs. Sequoiadb vs. TimescaleDB

System Properties Comparison OpenMLDB vs. PostGIS vs. RDFox vs. Sequoiadb vs. TimescaleDB

Editorial information provided by DB-Engines
NameOpenMLDB  Xexclude from comparisonPostGIS  Xexclude from comparisonRDFox  Xexclude from comparisonSequoiadb  Xexclude from comparisonTimescaleDB  Xexclude from comparison
DescriptionAn open-source machine learning database that provides a feature platform for training and inferenceSpatial extension of PostgreSQLHigh performance knowledge graph and semantic reasoning engineNewSQL database with distributed OLTP and SQLA time series DBMS optimized for fast ingest and complex queries, based on PostgreSQL
Primary database modelTime Series DBMSSpatial DBMSGraph DBMS
RDF store
Document store
Relational DBMS
Time Series DBMS
Secondary database modelsRelational DBMSRelational DBMSRelational DBMSRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.10
Rank#359  Overall
#36  Time Series DBMS
Score21.72
Rank#29  Overall
#1  Spatial DBMS
Score0.29
Rank#300  Overall
#24  Graph DBMS
#13  RDF stores
Score0.50
Rank#258  Overall
#41  Document stores
#120  Relational DBMS
Score4.46
Rank#71  Overall
#5  Time Series DBMS
Websiteopenmldb.aipostgis.netwww.oxfordsemantic.techwww.sequoiadb.comwww.timescale.com
Technical documentationopenmldb.ai/­docs/­zh/­mainpostgis.net/­documentationdocs.oxfordsemantic.techwww.sequoiadb.com/­en/­index.php?m=Files&a=indexdocs.timescale.com
Developer4 Paradigm Inc.Oxford Semantic TechnologiesSequoiadb Ltd.Timescale
Initial release20202005201720132017
Current release2024-2 February 20243.4.2, February 20246.0, Septermber 20222.15.0, May 2024
License infoCommercial or Open SourceOpen SourceOpen Source infoGPL v2.0commercialOpen Source infoServer: AGPL; Client: Apache V2Open Source infoApache 2.0
Cloud-based only infoOnly available as a cloud servicenonononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageC++, Java, ScalaCC++C++C
Server operating systemsLinuxLinux
macOS
Windows
LinuxLinux
OS X
Windows
Data schemeFixed schemayesyes infoRDF schemasschema-freeyes
Typing infopredefined data types such as float or dateyesyesyesyes infooid, date, timestamp, binary, regexnumerics, strings, booleans, arrays, JSON blobs, geospatial dimensions, currencies, binary data, other complex data types
XML support infoSome form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.noyesnoyes
Secondary indexesyesyesyesyes
SQL infoSupport of SQLyesyesnoSQL-like query languageyes infofull PostgreSQL SQL syntax
APIs and other access methodsJDBC
SQLAlchemy
RESTful HTTP API
SPARQL 1.1
proprietary protocol using JSONADO.NET
JDBC
native C library
ODBC
streaming API for large objects
Supported programming languagesC++
Go
Java
Python
Scala
C
Java
.Net
C++
Java
PHP
Python
.Net
C
C++
Delphi
Java infoJDBC
JavaScript
Perl
PHP
Python
R
Ruby
Scheme
Tcl
Server-side scripts infoStored proceduresnouser defined functionsJavaScriptuser defined functions, PL/pgSQL, PL/Tcl, PL/Perl, PL/Python, PL/Java, PL/PHP, PL/R, PL/Ruby, PL/Scheme, PL/Unix shell
Triggersnoyesnoyes
Partitioning methods infoMethods for storing different data on different nodeshorizontal partitioningyes infobased on PostgreSQLShardingyes, across time and space (hash partitioning) attributes
Replication methods infoMethods for redundantly storing data on multiple nodesSource-replica replicationyes infobased on PostgreSQLreplication via a shared file systemSource-replica replicationSource-replica replication with hot standby and reads on replicas info
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate Consistency in stand-alone mode, Eventual Consistency in replicated setupsEventual ConsistencyImmediate Consistency
Foreign keys infoReferential integritynoyesnoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACIDACIDDocument is locked during a transactionACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyesyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesnoyesnono
User concepts infoAccess controlfine grained access rights according to SQL-standardyes infobased on PostgreSQLRoles, resources, and access typessimple password-based access controlfine grained access rights according to SQL-standard

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More resources
OpenMLDBPostGISRDFoxSequoiadbTimescaleDB
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