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DBMS > HEAVY.AI vs. LokiJS vs. openGemini vs. OpenQM vs. Rockset

System Properties Comparison HEAVY.AI vs. LokiJS vs. openGemini vs. OpenQM vs. Rockset

Editorial information provided by DB-Engines
NameHEAVY.AI infoFormerly named 'OmniSci', rebranded to 'HEAVY.AI' in March 2022  Xexclude from comparisonLokiJS  Xexclude from comparisonopenGemini  Xexclude from comparisonOpenQM infoalso called QM  Xexclude from comparisonRockset  Xexclude from comparison
DescriptionA high performance, column-oriented RDBMS, specifically developed to harness the massive parallelism of modern CPU and GPU hardwareIn-memory JavaScript DBMSAn open source distributed Time Series DBMS with high concurrency, high performance, and high scalabilityQpenQM is a high-performance, self-tuning, multi-value DBMSA scalable, reliable search and analytics service in the cloud, built on RocksDB
Primary database modelRelational DBMSDocument storeTime Series DBMSMultivalue DBMSDocument store
Secondary database modelsSpatial DBMSRelational DBMS
Search engine
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.77
Rank#141  Overall
#65  Relational DBMS
Score0.43
Rank#264  Overall
#42  Document stores
Score0.01
Rank#375  Overall
#39  Time Series DBMS
Score0.27
Rank#298  Overall
#10  Multivalue DBMS
Score0.79
Rank#211  Overall
#35  Document stores
Websitegithub.com/­heavyai/­heavydb
www.heavy.ai
github.com/­techfort/­LokiJSwww.opengemini.org
github.com/­openGemini
www.rocketsoftware.com/­products/­rocket-multivalue-application-development-platform/­rocket-open-qmrockset.com
Technical documentationdocs.heavy.aitechfort.github.io/­LokiJSdocs.opengemini.org/­guidedocs.rockset.com
DeveloperHEAVY.AI, Inc.Huawei and openGemini communityRocket Software, originally Martin PhillipsRockset
Initial release20162014202219932019
Current release5.10, January 20221.1, July 20233.4-12
License infoCommercial or Open SourceOpen Source infoApache Version 2; enterprise edition availableOpen SourceOpen Source infoApache Version 2.0Open Source infoGPLv2, extended commercial license availablecommercial
Cloud-based only infoOnly available as a cloud servicenonononoyes
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageC++ and CUDAJavaScriptGoC++
Server operating systemsLinuxserver-less, requires a JavaScript environment (browser, Node.js)Linux
Windows
AIX
FreeBSD
Linux
macOS
Raspberry Pi
Solaris
Windows
hosted
Data schemeyesschema-freeschema-freeyes infowith some exceptionsschema-free
Typing infopredefined data types such as float or dateyesnoInteger, Float, Boolean, Stringdynamic typing
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.nononoyesno infoingestion from XML files supported
Secondary indexesnoyes infovia viewsyesyesall fields are automatically indexed
SQL infoSupport of SQLyesnoSQL-like query languagenoRead-only SQL queries, including JOINs
APIs and other access methodsJDBC
ODBC
Thrift
Vega
JavaScript APIHTTP RESTHTTP REST
Supported programming languagesAll languages supporting JDBC/ODBC/Thrift
Python
JavaScriptC
C++
Go
Java
JavaScript (Node.js)
Python
Rust
.Net
Basic
C
Java
Objective C
PHP
Python
Go
Java
JavaScript (Node.js)
Python
Server-side scripts infoStored proceduresnoView functions in JavaScriptnoyesno
Triggersnoyesnoyesno
Partitioning methods infoMethods for storing different data on different nodesSharding infoRound robinnoneShardingyesAutomatic sharding
Replication methods infoMethods for redundantly storing data on multiple nodesMulti-source replicationnoneyesyesyes
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyesnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencynoneImmediate ConsistencyEventual Consistency
Foreign keys infoReferential integritynonononono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanono infoatomic operations within a single collection possiblenoACIDno
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyesyes infoSerialization of a DB in a Node.JS/Cordova/PhoneGap environment. Usage of the IndexedDB-API in a browser.yesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyesyes
User concepts infoAccess controlfine grained access rights according to SQL-standardnoAdministrators and common users accountsAccess rights can be defined down to the item levelAccess rights for users and organizations can be defined via Rockset console

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More resources
HEAVY.AI infoFormerly named 'OmniSci', rebranded to 'HEAVY.AI' in March 2022LokiJSopenGeminiOpenQM infoalso called QMRockset
DB-Engines blog posts

New kids on the block: database management systems implemented in JavaScript
1 December 2014, Matthias Gelbmann

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