DB-EnginesExtremeDB: the first and only COTS deterministic embedded database management system for mission- and safety-critical hard real-time applicationsEnglish
Deutsch
Knowledge Base of Relational and NoSQL Database Management Systemsprovided by solid IT

DBMS > EventStoreDB vs. PostgreSQL vs. Quasardb

System Properties Comparison EventStoreDB vs. PostgreSQL vs. Quasardb

Please select another system to include it in the comparison.

Editorial information provided by DB-Engines
NameEventStoreDB  Xexclude from comparisonPostgreSQL  Xexclude from comparisonQuasardb  Xexclude from comparison
DescriptionIndustrial-strength, open-source database solution built from the ground up for event sourcing.Widely used open source RDBMS infoDeveloped as objectoriented DBMS (Postgres), gradually enhanced with 'standards' like SQLDistributed, high-performance timeseries database
Primary database modelEvent StoreRelational DBMS infowith object oriented extensions, e.g.: user defined types/functions and inheritance. Handling of key/value pairs with hstore module.Time Series DBMS
Secondary database modelsDocument store
Spatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.87
Rank#189  Overall
#1  Event Stores
Score577.50
Rank#4  Overall
#4  Relational DBMS
Score0.23
Rank#285  Overall
#23  Time Series DBMS
Websitewww.eventstore.comwww.postgresql.orgquasardb.net
Technical documentationdevelopers.eventstore.comwww.postgresql.org/­docsdoc.quasardb.net
DeveloperEvent Store LimitedPostgreSQL Global Development Group infowww.postgresql.org/­developerquasardb
Initial release20121989 info1989: Postgres, 1996: PostgreSQL2009
Current release21.2, February 202113.4, August 20213.1, January 2019
License infoCommercial or Open SourceOpen SourceOpen Source infoBSDcommercial infoFree community edition, Non-profit organizations and non-commercial usage are eligible for free licenses
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.
Event Store Cloud allows you to deploy a managed EventStoreDB cluster in AWS, GCP and Azure (coming soon).ScaleGrid for PostgreSQL: Fully managed PostgreSQL hosting on AWS, Azure and DigitalOcean with high availability and SSH access on the #1 multi-cloud DBaaS.
Implementation languageCC++
Server operating systemsLinux
Windows
FreeBSD
HP-UX
Linux
NetBSD
OpenBSD
OS X
Solaris
Unix
Windows
BSD
Linux
OS X
Windows
Data schemeyesschema-free
Typing infopredefined data types such as float or dateyesyes 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.yes infospecific XML-type available, but no XML query functionality.no
Secondary indexesyesyes infowith tags
SQL infoSupport of SQLyes infostandard with numerous extensionsSQL-like query language
APIs and other access methodsADO.NET
JDBC
native C library
ODBC
streaming API for large objects
HTTP API
Supported programming languages.Net
C
C++
Delphi
Java infoJDBC
JavaScript (Node.js)
Perl
PHP
Python
Tcl
.Net
C
C#
C++
Go
Java
JavaScript (Node.js)
PHP
Python
R
Server-side scripts infoStored proceduresuser defined functions inforealized in proprietary language PL/pgSQL or with common languages like Perl, Python, Tcl etc.no
Triggersyesno
Partitioning methods infoMethods for storing different data on different nodespartitioning by range, list and (since PostgreSQL 11) by hashSharding infoconsistent hashing
Replication methods infoMethods for redundantly storing data on multiple nodesSource-replica replication infoother methods possible by using 3rd party extensionsSource-replica replication with selectable replication factor
MapReduce infoOffers an API for user-defined Map/Reduce methodsnowith Hadoop integration
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyesno
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 persistentyesyes infoby using LevelDB
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyes infoTransient mode
User concepts infoAccess controlfine grained access rights according to SQL-standardCryptographically strong user authentication and audit trail
More information provided by the system vendor
EventStoreDBPostgreSQLQuasardb
Specific characteristicsGuaranteed writes Great performance that scales Immutable data store High availability...
» more
High-performance , high-speed, fully integrated timeseries database Seamlessly combines...
» more
Competitive advantagesEventStoreDB's core database server is used in production systems worldwide. The...
» more
High performance in a cost-effective small package Real-time results for even large...
» more
Typical application scenariosEvent-sourced systems Event-driven architecture
» more
Tick database Predictive maintenance Pre-deal checks Large scale monitoring
» more
Key customersEventStoreDB is used by companies across a whole range of industries. Here are just...
» more
Large EU investment banks US based hedge funds Orolia Tellmeplus
» more
Market metricsHas been running in very demanding production environments since 2013 Rapid adoption...
» more
Licensing and pricing modelsAvailable as open-source software and licensed under the 3-clause BSD license ( https://github.com/EventStore/EventStore/blob/master/LICENSE.md...
» more
Community edition limited to 2 nodes and 16 GiB of storage per node available for...
» more

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.

Related products and services
3rd partiesEDB: Helping organizations get the most from PostgreSQL, Oracle Migration, High Availability, Security
» more

SQLFlow: Provides a visual representation of the overall flow of data. Automated SQL data lineage analysis across Databases, ETL, Business Intelligence, Cloud and Hadoop environments by parsing SQL Script and stored procedure.
» more

Navicat for PostgreSQL is an easy-to-use graphical tool for PostgreSQL database development.
» more

Fivetran: Quickly and easily centralize your on-premise and cloud databases.
» more

ClusterControl: the only management system you’ll ever need to take control of your open source database infrastructure.
» more

pgDash: In-Depth PostgreSQL Monitoring.
» more

CYBERTEC is your professional partner for PostgreSQL services and Data Science since 2000. With offices in Austria, Uruguay, Estonia, Poland, South Africa and Switzerland, CYBERTEC operates worldwide and is here for you 24/7!
» more

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

More resources
EventStoreDBPostgreSQLQuasardb
DB-Engines blog posts

PostgreSQL is the DBMS of the Year 2020
4 January 2021, Paul Andlinger, Matthias Gelbmann

PostgreSQL is the DBMS of the Year 2018
2 January 2019, Paul Andlinger, Matthias Gelbmann

PostgreSQL is the DBMS of the Year 2017
2 January 2018, Paul Andlinger, Matthias Gelbmann

show all

Recent citations in the news

EventStoreDB 20.10 Released with Support for gRPC and Improved Security
7 January 2021, InfoQ.com

Event Store Cloud Has Entered General Availability USA - English USA
11 June 2021, PR Newswire India

Event Store Secures Series A Investment USA - English USA - English
29 September 2020, PRNewswire

ICON Corporate Finance advises Event Store on Series A investment
1 October 2020, Bdaily

Eventuate Platform Adds Support for Micronaut, Enhanced Developer Tooling and Improved Performance
5 August 2020, InfoQ.com

provided by Google News

Oracle to PostgreSQL? 6 Reasons to Make Your Open Source Migration
16 September 2021, insideBIGDATA

Instaclustr Adds PostgreSQL to Managed Platform in Public Preview
14 September 2021, Yahoo Finance

Amazon Aurora Supports PostgreSQL 13
5 September 2021, InfoQ.com

A Deep Dive Into PostgreSQL Indexes
10 September 2021, iProgrammer

Manage Your PostgreSQL Database With pgAdmin on Ubuntu - MUO
27 August 2021, MakeUseOf

provided by Google News

Real-time analytics database startup Imply raises $70M in Series C funding
16 June 2021, SiliconANGLE News

Exciting New Synths From Superbooth 2021
16 September 2021, Reverb News

Best domain registrars and domain name sellers
1 September 2021, ZDNet

Gartner Names Three 2020 Cool Vendors in Data Management
30 October 2020, Solutions Review

Time Series Databases Software Market 2021-2030 Detailed Analysis : Alibaba, Amazon Timestream, Anodot, AVEVA, AxiBase Enterprise Reporter
28 August 2021, The Manomet Current

provided by Google News

Job opportunities

Systems Architect
SkuVault, Remote

Data Support Associate
IDEXX, Westbrook, ME

Support Engineer - MySQL/PostgreSQL/MariaDB
Microsoft, Charlotte, NC

PostgreSQL DBA
Luxoft, Remote

Associate Software Engineer
Scholastic, New York, NY

GIS & Maps Quality Analyst
Facebook, Burlingame, CA

jobs by Indeed



Share this page

Featured Products

MariaDB logo

SkySQL, the ultimate
MariaDB cloud, is here.

Get started with SkySQL today!

Vertica logo

The fastest unified analytical warehouse at extreme scale with in-database machine learning. Try Vertica for free with no time limit.

Datastax Astra logo

Build cloud-native apps fast with Astra, the open-source, multi-cloud stack for
modern data apps.
Get started with 5 GB free..

Neo4j logo

See for yourself how a graph database can make your life easier.
Use Neo4j online for free.

Couchbase logo

The modern database for enterprise applications. Build fast. Scale Big. Save more.
Get started today.

Present your product here