DBMS > Alibaba Cloud AnalyticDB for PostgreSQL vs. EventStoreDB vs. STSdb vs. ToroDB

System Properties Comparison Alibaba Cloud AnalyticDB for PostgreSQL vs. EventStoreDB vs. STSdb vs. ToroDB

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Editorial information provided by DB-Engines
Name	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB  Xexclude from comparison	EventStoreDB  Xexclude from comparison	STSdb  Xexclude from comparison	ToroDB  Xexclude from comparison
				ToroDB seems to be discontinued. Therefore it is excluded from the DB-Engines Ranking.
Description	An online MPP (Massively Parallel Processing) data warehousing service based on Greenplum	Industrial-strength, open-source database solution built from the ground up for event sourcing.	Key-Value Store with special method for indexing optimized for high performance using a special indexing method	A MongoDB-compatible JSON document store, built on top of PostgreSQL
Primary database model	Relational DBMS	Event Store	Key-value store	Document store
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 0.76 Rank #220   Overall #102   Relational DBMS	Score 1.19 Rank #173   Overall #1   Event Stores	Score 0.10 Rank #357   Overall #51   Key-value stores
Website	www.alibabacloud.com/­product/­hybriddb-postgresql	www.eventstore.com	github.com/­STSSoft/­STSdb4	github.com/­torodb/­server
Technical documentation	www.alibabacloud.com/­help/­en/­analyticdb-for-postgresql/­latest/­product-introduction-overview	developers.eventstore.com
Developer	Alibaba / Pivotal Software Inc. / PostgreSQL Global Development Group	Event Store Limited	STS Soft SC	8Kdata
Initial release	2016	2012	2011	2016
Current release		21.2, February 2021	4.0.8, September 2015
License Commercial or Open Source	commercial	Open Source	Open Source GPLv2, commercial license available	Open Source AGPL-V3
Cloud-based only Only available as a cloud service	yes	no	no	no
DBaaS offerings (sponsored links) Database as a Service Providers of DBaaS offerings, please contact us to be listed.
Implementation language			C#	Java
Server operating systems	hosted	Linux Windows	Windows	All OS with a Java 7 VM
Data scheme	yes		yes	schema-free
Typing predefined data types such as float or date	yes		yes primitive types and user defined types (classes)	yes string, integer, double, boolean, date, object_id
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			no
Secondary indexes	yes		no
SQL Support of SQL	yes		no
APIs and other access methods	JDBC ODBC		.NET Client API
Supported programming languages	C Java Perl Python R		C# Java
Server-side scripts Stored procedures	yes		no
Triggers	yes		no	no
Partitioning methods Methods for storing different data on different nodes	Sharding Implicit feature of the cloud service		none	Sharding
Replication methods Methods for redundantly storing data on multiple nodes	yes Implicit feature of the cloud service		none	Source-replica replication
MapReduce Offers an API for user-defined Map/Reduce methods	no		no
Consistency concepts Methods to ensure consistency in a distributed system	Immediate Consistency			Eventual Consistency Immediate Consistency
Foreign keys Referential integrity	yes		no	no
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	ACID		no	no
Concurrency Support for concurrent manipulation of data	yes		yes	yes
Durability Support for making data persistent	yes		yes	yes
In-memory capabilities Is there an option to define some or all structures to be held in-memory only.	no
User concepts Access control	fine grained access rights according to SQL-standard		no	Access rights for users and roles
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More resources
	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB	EventStoreDB	STSdb	ToroDB
Recent citations in the news	Two Critical Flaws Found in Alibaba Cloud's PostgreSQL Databases 20 April 2023, The Hacker News Accidental ‘write’ Permissions In Alibaba PostgreSQL Let Attackers Access Sensitive Data 22 April 2023, GBHackers Two critical vulnerabilities spotted in Alibaba Cloud's PostgreSQL databases 21 April 2023, TEISS Alibaba Cloud to spur AI innovation with upcoming Singapore hackathon in March | KrASIA 21 February 2024, KrASIA Experts disclosed two critical flaws in Alibaba cloud database services 20 April 2023, Security Affairs provided by Google News

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