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DBMS > DolphinDB vs. Ignite vs. OpenMLDB vs. PostGIS vs. Quasardb

System Properties Comparison DolphinDB vs. Ignite vs. OpenMLDB vs. PostGIS vs. Quasardb

Editorial information provided by DB-Engines
NameDolphinDB  Xexclude from comparisonIgnite  Xexclude from comparisonOpenMLDB  Xexclude from comparisonPostGIS  Xexclude from comparisonQuasardb  Xexclude from comparison
DescriptionDolphinDB is a high performance Time Series DBMS. It is integrated with an easy-to-use fully featured programming language and a high-volume high-velocity streaming analytics system. It offers operational simplicity, scalability, fault tolerance, and concurrency.Apache Ignite is a memory-centric distributed database, caching, and processing platform for transactional, analytical, and streaming workloads, delivering in-memory speeds at petabyte scale.An open-source machine learning database that provides a feature platform for training and inferenceSpatial extension of PostgreSQLDistributed, high-performance timeseries database
Primary database modelTime Series DBMSKey-value store
Relational DBMS
Time Series DBMSSpatial DBMSTime Series DBMS
Secondary database modelsRelational DBMSRelational DBMSRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score4.03
Rank#78  Overall
#6  Time Series DBMS
Score3.11
Rank#96  Overall
#15  Key-value stores
#49  Relational DBMS
Score0.10
Rank#359  Overall
#36  Time Series DBMS
Score21.72
Rank#29  Overall
#1  Spatial DBMS
Score0.21
Rank#322  Overall
#29  Time Series DBMS
Websitewww.dolphindb.comignite.apache.orgopenmldb.aipostgis.netquasar.ai
Technical documentationdocs.dolphindb.cn/­en/­help200/­index.htmlapacheignite.readme.io/­docsopenmldb.ai/­docs/­zh/­mainpostgis.net/­documentationdoc.quasar.ai/­master
DeveloperDolphinDB, IncApache Software Foundation4 Paradigm Inc.quasardb
Initial release20182015202020052009
Current releasev2.00.4, January 2022Apache Ignite 2.62024-2 February 20243.4.2, February 20243.14.1, January 2024
License infoCommercial or Open Sourcecommercial infofree community version availableOpen Source infoApache 2.0Open SourceOpen Source infoGPL v2.0commercial infoFree community edition, Non-profit organizations and non-commercial usage are eligible for free licenses
Cloud-based only infoOnly available as a cloud servicenonononono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageC++C++, Java, .NetC++, Java, ScalaCC++
Server operating systemsLinux
Windows
Linux
OS X
Solaris
Windows
LinuxBSD
Linux
OS X
Windows
Data schemeyesyesFixed schemayesschema-free
Typing infopredefined data types such as float or dateyesyesyesyesyes infointeger and binary
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.noyesnoyesno
Secondary indexesyesyesyesyesyes infowith tags
SQL infoSupport of SQLSQL-like query languageANSI-99 for query and DML statements, subset of DDLyesyesSQL-like query language
APIs and other access methodsJDBC
JSON over HTTP
Kafka
MQTT (Message Queue Telemetry Transport)
ODBC
OPC DA
OPC UA
RabbitMQ
WebSocket
HDFS API
Hibernate
JCache
JDBC
ODBC
Proprietary protocol
RESTful HTTP API
Spring Data
JDBC
SQLAlchemy
HTTP API
Supported programming languagesC#
C++
Go
Java
JavaScript
MatLab
Python
R
Rust
C#
C++
Java
PHP
Python
Ruby
Scala
C++
Go
Java
Python
Scala
.Net
C
C#
C++
Go
Java
JavaScript (Node.js)
PHP
Python
R
Server-side scripts infoStored proceduresyesyes (compute grid and cache interceptors can be used instead)nouser defined functionsno
Triggersnoyes (cache interceptors and events)noyesno
Partitioning methods infoMethods for storing different data on different nodeshorizontal partitioningShardinghorizontal partitioningyes infobased on PostgreSQLSharding infoconsistent hashing
Replication methods infoMethods for redundantly storing data on multiple nodesyesyes (replicated cache)Source-replica replicationyes infobased on PostgreSQLSource-replica replication with selectable replication factor
MapReduce infoOffers an API for user-defined Map/Reduce methodsyesyes (compute grid and hadoop accelerator)nowith Hadoop integration
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynononoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datayesACIDnoACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyesyes
Durability infoSupport for making data persistentyesyesyesyesyes infoby using LevelDB
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyesyesnoyes infoTransient mode
User concepts infoAccess controlAdministrators, Users, GroupsSecurity Hooks for custom implementationsfine grained access rights according to SQL-standardyes infobased on PostgreSQLCryptographically strong user authentication and audit trail

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More resources
DolphinDBIgniteOpenMLDBPostGISQuasardb
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