DBMS > PostgreSQL vs. Transwarp StellarDB vs. VoltDB
System Properties Comparison PostgreSQL vs. Transwarp StellarDB vs. VoltDB
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|Editorial information provided by DB-Engines
|PostgreSQL Xexclude from comparison
|Transwarp StellarDB Xexclude from comparison
|VoltDB Xexclude from comparison
|Widely used open source RDBMS Developed as objectoriented DBMS (Postgres), gradually enhanced with 'standards' like SQL
|A distributed graph DBMS built for enterprise-level graph applications
|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.
|Secondary database models
Graph DBMS with Apache Age
Vector DBMS with pgvector extension
|PostgreSQL Global Development Group www.postgresql.org/developer
|1989 1989: Postgres, 1996: PostgreSQL
|16.2, February 2024
|11.3, April 2022
|License Commercial or Open Source
|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
|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.
|Server operating systems
OS X for development
|Typing predefined data types such as float or date
|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.
|SQL Support of SQL
|yes standard with numerous extensions
|SQL-like query language
|yes only a subset of SQL 99
|APIs and other access methods
native C library
streaming API for large objects
RESTful HTTP/JSON API
|Supported programming languages
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.
|Partitioning methods Methods for storing different data on different nodes
|partitioning by range, list and (since PostgreSQL 11) by hash
|Replication methods Methods for redundantly storing data on multiple nodes
|Source-replica replication other methods possible by using 3rd party extensions
|MapReduce Offers an API for user-defined Map/Reduce methods
|Consistency concepts Methods to ensure consistency in a distributed system
|Foreign keys Referential integrity
|no FOREIGN KEY constraints are not supported
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data
|ACID Transactions are executed single-threaded within stored procedures
|Concurrency Support for concurrent manipulation of data
|yes Data access is serialized by the server
|Durability Support for making data persistent
|yes Snapshots and command logging
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.
|User concepts Access control
|fine grained access rights according to SQL-standard
|Users and roles with access to stored procedures
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|Recent citations in the news
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provided by Google News
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