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DBMS > Dragonfly vs. ObjectBox vs. Postgres-XL vs. SQream DB vs. Trafodion

System Properties Comparison Dragonfly vs. ObjectBox vs. Postgres-XL vs. SQream DB vs. Trafodion

Editorial information provided by DB-Engines
NameDragonfly  Xexclude from comparisonObjectBox  Xexclude from comparisonPostgres-XL  Xexclude from comparisonSQream DB  Xexclude from comparisonTrafodion  Xexclude from comparison
Apache Trafodion has been retired in 2021. Therefore it is excluded from the DB-Engines Ranking.
DescriptionA drop-in Redis replacement that scales vertically to support millions of operations per second and terabyte sized workloads, all on a single instanceExtremely fast embedded database for small devices, IoT and MobileBased on PostgreSQL enhanced with MPP and write-scale-out cluster featuresa GPU-based, columnar RDBMS for big data analytics workloadsTransactional SQL-on-Hadoop DBMS
Primary database modelKey-value storeObject oriented DBMSRelational DBMSRelational DBMSRelational DBMS
Secondary database modelsTime Series DBMSDocument store
Spatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.41
Rank#266  Overall
#38  Key-value stores
Score1.20
Rank#170  Overall
#5  Object oriented DBMS
Score0.49
Rank#256  Overall
#117  Relational DBMS
Score0.70
Rank#227  Overall
#104  Relational DBMS
Websitegithub.com/­dragonflydb/­dragonfly
www.dragonflydb.io
objectbox.iowww.postgres-xl.orgsqream.comtrafodion.apache.org
Technical documentationwww.dragonflydb.io/­docsdocs.objectbox.iowww.postgres-xl.org/­documentationdocs.sqream.comtrafodion.apache.org/­documentation.html
DeveloperDragonflyDB team and community contributorsObjectBox LimitedSQream TechnologiesApache Software Foundation, originally developed by HP
Initial release202320172014 infosince 2012, originally named StormDB20172014
Current release1.0, March 202310 R1, October 20182022.1.6, December 20222.3.0, February 2019
License infoCommercial or Open SourceOpen Source infoBSL 1.1Open Source infoApache License 2.0Open Source infoMozilla public licensecommercialOpen 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++C and C++CC++, CUDA, Haskell, Java, ScalaC++, Java
Server operating systemsLinuxAndroid
iOS
Linux
macOS
Windows
Linux
macOS
LinuxLinux
Data schemescheme-freeyesyesyesyes
Typing infopredefined data types such as float or datestrings, hashes, lists, sets, sorted sets, bit arraysyesyesyes, ANSI Standard SQL Typesyes
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.nonoyes infoXML type, but no XML query functionalityno
Secondary indexesnoyesyesnoyes
SQL infoSupport of SQLnonoyes infodistributed, parallel query executionyesyes
APIs and other access methodsProprietary protocol infoRESP - REdis Serialization ProtocolProprietary native APIADO.NET
JDBC
native C library
ODBC
streaming API for large objects
.Net
JDBC
ODBC
ADO.NET
JDBC
ODBC
Supported programming languagesC
C#
C++
Clojure
D
Dart
Elixir
Erlang
Go
Haskell
Java
JavaScript (Node.js)
Lisp
Lua
Objective-C
Perl
PHP
Python
R
Ruby
Rust
Scala
Swift
Tcl
C
C++
Dart
Go
Java
JavaScript infoplanned (as of Jan 2019)
Kotlin
Python infoplanned (as of Jan 2019)
Swift
.Net
C
C++
Delphi
Erlang
Java
JavaScript (Node.js)
Perl
PHP
Python
Tcl
C++
Java
JavaScript (Node.js)
Python
All languages supporting JDBC/ODBC/ADO.Net
Server-side scripts infoStored proceduresLuanouser defined functionsuser defined functions in PythonJava Stored Procedures
Triggerspublish/subscribe channels provide some trigger functionalitynoyesnono
Partitioning methods infoMethods for storing different data on different nodesnonehorizontal partitioninghorizontal and vertical partitioningSharding
Replication methods infoMethods for redundantly storing data on multiple nodesSource-replica replicationonline/offline synchronization between client and servernoneyes, via HBase
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonononoyes infovia user defined functions and HBase
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual ConsistencyImmediate ConsistencyImmediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynoyesyesnoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataAtomic execution of command blocks and scriptsACIDACID infoMVCCACIDACID
Concurrency infoSupport for concurrent manipulation of datayes, strict serializability by the serveryesyesyesyes
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.yesnonono
User concepts infoAccess controlPassword-based authenticationyesfine grained access rights according to SQL-standardfine grained access rights according to SQL-standard
More information provided by the system vendor
DragonflyObjectBoxPostgres-XLSQream DBTrafodion
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More resources
DragonflyObjectBoxPostgres-XLSQream DBTrafodion
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