DBMS > PostgreSQL vs. RethinkDB vs. ScyllaDB
System Properties Comparison PostgreSQL vs. RethinkDB vs. ScyllaDB
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|Editorial information provided by DB-Engines
|PostgreSQL Xexclude from comparison
|RethinkDB Xexclude from comparison
|ScyllaDB Xexclude from comparison
|Widely used open source RDBMS Developed as objectoriented DBMS (Postgres), gradually enhanced with 'standards' like SQL
|DBMS for the Web with a mechanism to push updated query results to applications in realtime.
|Cassandra and DynamoDB compatible wide column store
|Primary database model
|Relational DBMS with object oriented extensions, e.g.: user defined types/functions and inheritance. Handling of key/value pairs with hstore module.
|Wide column store
|Secondary database models
Graph DBMS with Apache Age
Vector DBMS with pgvector extension
|PostgreSQL Global Development Group www.postgresql.org/developer
|The Linux Foundation since July 2017
|1989 1989: Postgres, 1996: PostgreSQL
|16.2, February 2024
|2.4.1, August 2020
|ScyllaDB Open Source 5.4.1, January 2024
|License Commercial or Open Source
|Open Source BSD
|Open Source Apache Version 2
|Open Source Open Source (AGPL), commercial license available
|Cloud-based only Only available as a cloud service
|DBaaS offerings (sponsored links) Database as a Service
Providers of DBaaS offerings, please contact us to be listed.
|Aiven for PostgreSQL: Fully managed PostgreSQL for developers with 70+ extensions and flexible orchestration tools.
|Scylla Cloud: Create real-time applications that run at global scale with Scylla Cloud, the industry’s most powerful NoSQL DBaaS
|Server operating systems
|Typing predefined data types such as float or date
|yes string, binary, float, bool, date, geometry
|XML support Some form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.
|yes specific XML-type available, but no XML query functionality.
|yes cluster global secondary indices
|SQL Support of SQL
|yes standard with numerous extensions
|SQL-like DML and DDL statements (CQL)
|APIs and other access methods
native C library
streaming API for large objects
|Proprietary protocol (CQL) compatible with CQL (Cassandra Query Language, an SQL-like language)
RESTful HTTP API (DynamoDB compatible)
|Supported programming languages
|C community-supported driver
C# community-supported driver
C++ community-supported driver
Clojure community-supported driver
Dart community-supported driver
Erlang community-supported driver
Go community-supported driver
Haskell community-supported driver
Java official driver
Lisp community-supported driver
Lua community-supported driver
Objective-C community-supported driver
Perl community-supported driver
PHP community-supported driver
Python official driver
Ruby official driver
Scala community-supported driver
|Server-side scripts Stored procedures
|user defined functions realized in proprietary language PL/pgSQL or with common languages like Perl, Python, Tcl etc.
|Client-side triggers through changefeeds
|Partitioning methods Methods for storing different data on different nodes
|partitioning by range, list and (since PostgreSQL 11) by hash
|Sharding range based
|Replication methods Methods for redundantly storing data on multiple nodes
|Source-replica replication other methods possible by using 3rd party extensions
|selectable replication factor Representation of geographical distribution of servers is possible
|MapReduce Offers an API for user-defined Map/Reduce methods
|Consistency concepts Methods to ensure consistency in a distributed system
Tunable Consistency can be individually decided for each write operation
|Foreign keys Referential integrity
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data
|Atomic single-document operations
|no Atomicity and isolation are supported for single operations
|Concurrency Support for concurrent manipulation of data
|yes MVCC based
|Durability Support for making data persistent
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.
|yes in-memory tables
|User concepts Access control
|fine grained access rights according to SQL-standard
|yes users and table-level permissions
|Access rights for users can be defined per object
|More information provided by the system vendor
|ScyllaDB is the database for data-intensive apps that require high performance and...
|Highly-performant (efficiently utilizes full resources of a node and network; millions...
|Typical application scenarios
|ScyllaDB is ideal for applications that require high throughput and low latency at...
|Discord, Epic Games, Expedia, Zillow, Comcast, Disney+ Hotstar, Samsung, ShareChat,...
|ScyllaDB typically offers ~75% total cost of ownership savings, with ~5X higher throughput...
|Licensing and pricing models
|ScyllaDB Open Source - free open source software (AGPL) ScyllaDB Enterprise - subscription-based...
We invite representatives of system vendors to contact us for updating and extending the system information,
|Related products and services
|Fujitsu Enterprise Postgres: An Enterprise Grade PostgreSQL with the flexibility of a hybrid cloud solution combined with industry leading security, availability and performance.
Timescale: Calling all PostgreSQL users – the 2023 State of PostgreSQL survey is now open! Share your favorite extensions, preferred frameworks, community experiences, and more. Take the survey today!
Redgate webinars: A series of key topics for new PostgreSQL users.
Navicat for PostgreSQL is an easy-to-use graphical tool for PostgreSQL database development.
Navicat Monitor is a safe, simple and agentless remote server monitoring tool for PostgreSQL and many other database management systems.
Datasentinel: Platform for Monitoring and Analyzing the performance problems of your PostgreSQL Clusters
Aiven for PostgreSQL: Fully managed PostgreSQL for developers with 70+ extensions and flexible orchestration tools.
pgDash: In-Depth PostgreSQL Monitoring.
Instaclustr: Fully Hosted & Managed PostgreSQL
We invite representatives of vendors of related products to contact us for presenting information about their offerings here.
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