DBMS > PostgreSQL vs. RocksDB vs. VoltDB
System Properties Comparison PostgreSQL vs. RocksDB vs. VoltDB
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|Editorial information provided by DB-Engines|
|Name||PostgreSQL Xexclude from comparison||RocksDB Xexclude from comparison||VoltDB Xexclude from comparison|
|Description||Widely used open source RDBMS Developed as objectoriented DBMS (Postgres), gradually enhanced with 'standards' like SQL||Embeddable persistent key-value store optimized for fast storage (flash and RAM)||Distributed In-Memory NewSQL RDBMS Used for OLTP applications with a high frequency of relatively simple transactions, that can hold all their data in memory|
|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.||Key-value store||Relational DBMS|
|Secondary database models||Document store|
Graph DBMS with Apache Age
Vector DBMS with pgvector extension
|Developer||PostgreSQL Global Development Group www.postgresql.org/developer||Facebook, Inc.||VoltDB Inc.|
|Initial release||1989 1989: Postgres, 1996: PostgreSQL||2013||2010|
|Current release||16.0, September 2023||8.5.4, September 2023||11.3, April 2022|
|License Commercial or Open Source||Open Source BSD||Open Source BSD||Open Source AGPL for Community Edition, commercial license for Enterprise, AWS, and Pro Editions|
|Cloud-based only Only available as a cloud service||no||no||no|
|DBaaS offerings (sponsored links) Database as a Service|
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|Aiven for PostgreSQL: Fully managed PostgreSQL for developers with 70+ extensions and flexible orchestration tools.|
|Implementation language||C||C++||Java, C++|
|Server operating systems||FreeBSD|
OS X for development
|Typing predefined data types such as float or date||yes||no||yes|
|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.||no|
|SQL Support of SQL||yes standard with numerous extensions||no||yes only a subset of SQL 99|
|APIs and other access methods||ADO.NET|
native C library
streaming API for large objects
RESTful HTTP/JSON API
|Supported programming languages||.Net|
Erlang not officially supported
|Server-side scripts Stored procedures||user defined functions realized in proprietary language PL/pgSQL or with common languages like Perl, Python, Tcl etc.||no||Java|
|Partitioning methods Methods for storing different data on different nodes||partitioning by range, list and (since PostgreSQL 11) by hash||horizontal partitioning||Sharding|
|Replication methods Methods for redundantly storing data on multiple nodes||Source-replica replication other methods possible by using 3rd party extensions||yes||Multi-source replication|
|MapReduce Offers an API for user-defined Map/Reduce methods||no||no||no|
|Consistency concepts Methods to ensure consistency in a distributed system||Immediate Consistency|
|Foreign keys Referential integrity||yes||no||no FOREIGN KEY constraints are not supported|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||ACID||yes||ACID Transactions are executed single-threaded within stored procedures|
|Concurrency Support for concurrent manipulation of data||yes||yes||yes Data access is serialized by the server|
|Durability Support for making data persistent||yes||yes||yes Snapshots and command logging|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||no||yes|
|User concepts Access control||fine grained access rights according to SQL-standard||no||Users and roles with access to stored procedures|
More information provided by the system vendor
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|Related products and services|
|3rd parties||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!
Navicat for PostgreSQL is an easy-to-use graphical tool for PostgreSQL database development.
Aiven for PostgreSQL: Fully managed PostgreSQL for developers with 70+ extensions and flexible orchestration tools.
Navicat Monitor is a safe, simple and agentless remote server monitoring tool for PostgreSQL and many other database management systems.
Fujitsu Enterprise Postgres: An Enterprise Grade PostgreSQL with the flexibility of a hybrid cloud solution combined with industry leading security, availability and performance.
pgDash: In-Depth PostgreSQL Monitoring.
Instaclustr: Fully Hosted & Managed PostgreSQL
Datasentinel: Platform for Monitoring and Analyzing the performance problems of your PostgreSQL Clusters
Redgate webinars: A series of key topics for new PostgreSQL users.
|Speedb: A high performance RocksDB-compliant key-value store optimized for write-intensive workloads.|
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|DB-Engines blog posts|
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|Conferences and events|
PostgreSQL 101: An introduction to Multi-Version Concurrency Control and Vacuum
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