DBMS > Alibaba Cloud AnalyticDB for PostgreSQL vs. OrigoDB vs. Postgres-XL vs. VelocityDB

System Properties Comparison Alibaba Cloud AnalyticDB for PostgreSQL vs. OrigoDB vs. Postgres-XL vs. VelocityDB

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Editorial information provided by DB-Engines
Name	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB  Xexclude from comparison	OrigoDB  Xexclude from comparison	Postgres-XL  Xexclude from comparison	VelocityDB  Xexclude from comparison
Description	An online MPP (Massively Parallel Processing) data warehousing service based on Greenplum	A fully ACID in-memory object graph database	Based on PostgreSQL enhanced with MPP and write-scale-out cluster features	A .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)
Primary database model	Relational DBMS	Document store Object oriented DBMS	Relational DBMS	Graph DBMS Object oriented DBMS
Secondary database models			Document store Spatial DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 0.76 Rank #220   Overall #102   Relational DBMS	Score 0.06 Rank #380   Overall #50   Document stores #18   Object oriented DBMS	Score 0.53 Rank #254   Overall #117   Relational DBMS	Score 0.11 Rank #354   Overall #37   Graph DBMS #15   Object oriented DBMS
Website	www.alibabacloud.com/­product/­hybriddb-postgresql	origodb.com	www.postgres-xl.org	velocitydb.com
Technical documentation	www.alibabacloud.com/­help/­en/­analyticdb-for-postgresql/­latest/­product-introduction-overview	origodb.com/­docs	www.postgres-xl.org/­documentation	velocitydb.com/­UserGuide
Developer	Alibaba / Pivotal Software Inc. / PostgreSQL Global Development Group	Robert Friberg et al		VelocityDB Inc
Initial release	2016	2009 under the name LiveDB	2014 since 2012, originally named StormDB	2011
Current release			10 R1, October 2018	7.x
License Commercial or Open Source	commercial	Open Source	Open Source Mozilla public license	commercial
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#	C	C#
Server operating systems	hosted	Linux Windows	Linux macOS	Any that supports .NET
Data scheme	yes	yes	yes	yes
Typing predefined data types such as float or date	yes	User defined using .NET types and collections	yes	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	no can be achieved using .NET	yes XML type, but no XML query functionality	no
Secondary indexes	yes	yes	yes	yes
SQL Support of SQL	yes	no	yes distributed, parallel query execution	no
APIs and other access methods	JDBC ODBC	.NET Client API HTTP API LINQ	ADO.NET JDBC native C library ODBC streaming API for large objects	.Net
Supported programming languages	C Java Perl Python R	.Net	.Net C C++ Delphi Erlang Java JavaScript (Node.js) Perl PHP Python Tcl	.Net
Server-side scripts Stored procedures	yes	yes	user defined functions	no
Triggers	yes	yes Domain Events	yes	Callbacks are triggered when data changes
Partitioning methods Methods for storing different data on different nodes	Sharding Implicit feature of the cloud service	horizontal partitioning client side managed; servers are not synchronized	horizontal partitioning	Sharding
Replication methods Methods for redundantly storing data on multiple nodes	yes Implicit feature of the cloud service	Source-replica replication
MapReduce Offers an API for user-defined Map/Reduce methods	no	no	no	no
Consistency concepts Methods to ensure consistency in a distributed system	Immediate Consistency		Immediate Consistency	Immediate Consistency
Foreign keys Referential integrity	yes	depending on model	yes	no
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	ACID	ACID	ACID MVCC	ACID
Concurrency Support for concurrent manipulation of data	yes	yes	yes	yes
Durability Support for making data persistent	yes	yes Write ahead log	yes	yes
In-memory capabilities Is there an option to define some or all structures to be held in-memory only.	no	yes	no	yes
User concepts Access control	fine grained access rights according to SQL-standard	Role based authorization	fine grained access rights according to SQL-standard	Based on Windows Authentication
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More resources
	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB	OrigoDB	Postgres-XL	VelocityDB
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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