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DBMS > Nebula Graph vs. PostgreSQL

System Properties Comparison Nebula Graph vs. PostgreSQL

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Our visitors often compare Nebula Graph and PostgreSQL with Neo4j, JanusGraph and Dgraph.

Editorial information provided by DB-Engines
NameNebula Graph  Xexclude from comparisonPostgreSQL  Xexclude from comparison
DescriptionA distributed, linear scalable, high perfomant Graph DBMSWidely used open source RDBMS infoDeveloped as objectoriented DBMS (Postgres), gradually enhanced with 'standards' like SQL
Primary database modelGraph DBMSRelational DBMS infowith object oriented extensions, e.g.: user defined types/functions and inheritance. Handling of key/value pairs with hstore module.
Secondary database modelsDocument store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.16
Rank#271  Overall
#23  Graph DBMS
Score509.86
Rank#4  Overall
#4  Relational DBMS
Websitegithub.com/­vesoft-inc/­nebula
nebula-graph.io
www.postgresql.org
Technical documentationdocs.nebula-graph.iowww.postgresql.org/­docs/­manuals
DeveloperVesoft Inc.PostgreSQL Global Development Group infowww.postgresql.org/­developer
Initial release20191989 info1989: Postgres, 1996: PostgreSQL
Current release12.2, February 2020
License infoCommercial or Open SourceOpen Source infoApache Version 2.0 + Common Clause 1.0Open Source infoBSD
Cloud-based only infoOnly available as a cloud servicenono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
  • Azure Database for PostgreSQL: A fully managed, scalable PostgreSQL relational database with high availability and security built in at no extra cost
  • ScaleGrid: Fully managed PostgreSQL hosting with high availability, dedicated servers, and superuser control on the #1 multi-cloud Amazon RDS alternative.
Implementation languageC++C
Server operating systemsLinuxFreeBSD
HP-UX
Linux
NetBSD
OpenBSD
OS X
Solaris
Unix
Windows
Data schemeStrong typed schemayes
Typing infopredefined data types such as float or dateyesyes
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.noyes infospecific XML-type available, but no XML query functionality.
Secondary indexesyes infoNebula Graph internally uses the Key-Value store RocksDB for persistency. The vertices, edges, and their properties are stored as Key while their values are stored as Value. The primary indexes are per Key and secondary indexes are per Value.yes
SQL infoSupport of SQLSQL-like query languageyes infostandard with numerous extensions
APIs and other access methodsBrowser interface
console (shell)
Proprietary native API
Query language nGQL
ADO.NET
JDBC
native C library
ODBC
streaming API for large objects
Supported programming languagesC++
Go
Java
Python
.Net
C
C++
Delphi
Java infoJDBC
JavaScript (Node.js)
Perl
PHP
Python
Tcl
Server-side scripts infoStored proceduresuser defined functions inforealized in proprietary language PL/pgSQL or with common languages like Perl, Python, Tcl etc.
Triggersyes
Partitioning methods infoMethods for storing different data on different nodesShardingpartitioning by range, list and (since PostgreSQL 11) by hash
Replication methods infoMethods for redundantly storing data on multiple nodesCausal Clustering using Raft protocolMaster-slave replication infoother methods possible by using 3rd party extensions
MapReduce infoOffers an API for user-defined Map/Reduce methodsnono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyes infoRelationships in graphsyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyes
Durability infoSupport for making data persistentyes infousing RocksDByes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesno
User concepts infoAccess controlRole-based access controlfine grained access rights according to SQL-standard
More information provided by the system vendor
Nebula GraphPostgreSQL
Specific characteristicsNebula Graph is a truly distributed, linear scalable, lightning-fast graph database,...
» more
Competitive advantagesNebula Graph boasts the world's only graph database solution that is able to host...
» more
Typical application scenariosSocial networking Fraud detection Knowledge graph Data warehouse management Anti...
» more
Key customersCurrently we have some top internet companies in China implementing Nebula Graph...
» more
Market metricsAt our very early stage, Nebula Graph has already received over a thousand stars...
» more
Licensing and pricing modelsNebula Graph is open source and free to use under Apache 2.0 license and Common Clause...
» more
News

The Review on Graph Database
31 March 2020

How Nebula Graph Automatically Cleans Stale Data with TTL
24 March 2020

Automating Your Project Processes with Github Actions
17 March 2020

How Indexing Works in Nebula Graph
12 March 2020

Graph Query Language Comparison Series - Gremlin vs Cypher vs nGQL
3 March 2020

We invite representatives of system vendors to contact us for updating and extending the system information,
and for displaying vendor-provided information such as key customers, competitive advantages and market metrics.

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We invite representatives of vendors of related products to contact us for presenting information about their offerings here.

More resources
Nebula GraphPostgreSQL
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Conferences and events

PostgreSQL Database Administration
Online Training, daily from 5am – 7am UTC or 4pm – 6pm UTC, 4-8 May 2020

PGCon 2020, PostgreSQL Conference for Users and Developers
Due to COVID-19, it will be an online conference, 26-29 May 2020

Recent citations in the news

Tracking the Spread of Coronavirus with Graph Databases
12 March 2020, Datanami

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