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DBMS > Citus vs. LokiJS vs. Weaviate

System Properties Comparison Citus vs. LokiJS vs. Weaviate

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Editorial information provided by DB-Engines
NameCitus  Xexclude from comparisonLokiJS  Xexclude from comparisonWeaviate  Xexclude from comparison
DescriptionScalable hybrid operational and analytics RDBMS for big data use cases based on PostgreSQLIn-memory JavaScript DBMSAn open-source GraphQL-based Smart Graph with the core features: semantic search, automatic classification, and knowledge representation
Primary database modelRelational DBMSDocument storeGraph DBMS
Secondary database modelsDocument storeSearch engine
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.07
Rank#146  Overall
#71  Relational DBMS
Score0.38
Rank#227  Overall
#32  Document stores
Score0.07
Rank#299  Overall
#29  Graph DBMS
Websitewww.citusdata.comgithub.com/­techfort/­LokiJSgithub.com/­semi-technologies/­weaviate
www.semi.technology/­products/­weaviate.html
Technical documentationdocs.citusdata.comtechfort.github.io/­LokiJSwww.semi.technology/­documentation/­weaviate/­current
DeveloperSeMI Technologies B.V.
Initial release201020142017
Current release8.1, December 20180.22, January 2020
License infoCommercial or Open SourceOpen Source infoAGPL, commercial license also availableOpen SourceOpen Source infocommercial license available with Weaviate Enterprise
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageCJavaScriptGo
Server operating systemsLinuxserver-less, requires a JavaScript environment (browser, Node.js)
Data schemeyesschema-freeyes, maps to GraphQL interface
Typing infopredefined data types such as float or dateyesnoyes infostring, int, float, geo point, date, cross reference, fuzzy references
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.yes infospecific XML type available, but no XML query functionalitynono
Secondary indexesyesyes infovia viewsyes infoall data objects are indexed in a semantic vector space (the Contextionary), all primitive fields are indexed
SQL infoSupport of SQLyes infostandard, with numerous extensionsnoGraphQL is used as query language
APIs and other access methodsADO.NET
JDBC
native C library
ODBC
streaming API for large objects
JavaScript APIGraphQL query language
RESTful HTTP/JSON API
Supported programming languages.Net
C
C++
Delphi
Java
JavaScript (Node.js)
Perl
PHP
Python
Tcl
JavaScript
Server-side scripts infoStored proceduresuser defined functions inforealized in proprietary language PL/pgSQL or with common languages like Perl, Python, Tcl etc.View functions in JavaScriptno
Triggersyesyesno
Partitioning methods infoMethods for storing different data on different nodesShardingnoneSharding
Replication methods infoMethods for redundantly storing data on multiple nodesMaster-slave replication infoother methods possible by using 3rd party extensionsnoneyes
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyesno
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencynoneEventual Consistency
Foreign keys infoReferential integrityyesnono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDno infoatomic operations within a single collection possibleno
Concurrency infoSupport for concurrent manipulation of datayesyes
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.yes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyesno
User concepts infoAccess controlfine grained access rights according to SQL-standardnoOpenID Connect Discovery
More information provided by the system vendor
CitusLokiJSWeaviate
News

Weaviate in IEEE

Weaviate on DB-engines.com

Introduction & Demo video

FLOSS Weekly Podcast

FOSDEM 2020 video

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More resources
CitusLokiJSWeaviate
DB-Engines blog posts

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

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Recent citations in the news

Microsoft acquires Citus Data for its open source PostgreSQL tool
24 January 2019, VentureBeat

Microsoft Expands Azure PostgreSQL Moxy Through Citus Data Purchase
30 January 2019, Data Center Knowledge

Microsoft Acquires Citus Data to Dive Deeper into Postgres
30 January 2019, eWeek

Citus Data Announces Citus Cloud Database Support for HIPAA and SOC 2 Type 2 Compliance
13 November 2018, Business Wire

Microsoft rolls out new performance-scaling features for Azure databases, including serverless Azure SQL
6 May 2019, GeekWire

provided by Google News

Fast, Lightweight Data Storage for Cordova Apps with LokiJS
26 January 2016, SitePoint

LokiJS 1.4 Release Brings Performance Improvement, NativeScript Adapter
12 July 2016, InfoQ.com

LokiJS - A JavaScript Database
18 November 2014, iProgrammer

NativeScript 6 Goes Webpack All The Way
22 July 2019, iProgrammer

LinkedIn open-sources URL-Detector Java library, LokiJS 1.4, and Bulgaria's new open-source law—SD Times news digest: July 5, 2016
5 July 2016, SDTimes.com

provided by Google News

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