DBMS > Alibaba Cloud AnalyticDB for PostgreSQL vs. Lovefield vs. OpenQM vs. Sadas Engine

System Properties Comparison Alibaba Cloud AnalyticDB for PostgreSQL vs. Lovefield vs. OpenQM vs. Sadas Engine

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Name	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB  Xexclude from comparison	Lovefield  Xexclude from comparison	OpenQM also called QM  Xexclude from comparison	Sadas Engine  Xexclude from comparison
Description	An online MPP (Massively Parallel Processing) data warehousing service based on Greenplum	Embeddable relational database for web apps written in pure JavaScript	QpenQM is a high-performance, self-tuning, multi-value DBMS	SADAS Engine is a columnar DBMS specifically designed for high performance in data warehouse environments
Primary database model	Relational DBMS	Relational DBMS	Multivalue DBMS	Relational DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 0.76 Rank #220   Overall #102   Relational DBMS	Score 0.33 Rank #286   Overall #131   Relational DBMS	Score 0.34 Rank #284   Overall #10   Multivalue DBMS	Score 0.07 Rank #373   Overall #157   Relational DBMS
Website	www.alibabacloud.com/­product/­hybriddb-postgresql	google.github.io/­lovefield	www.rocketsoftware.com/­products/­rocket-multivalue-application-development-platform/­rocket-open-qm	www.sadasengine.com
Technical documentation	www.alibabacloud.com/­help/­en/­analyticdb-for-postgresql/­latest/­product-introduction-overview	github.com/­google/­lovefield/­blob/­master/­docs/­spec_index.md		www.sadasengine.com/­en/­sadas-engine-download-free-trial-and-documentation/­#documentation
Developer	Alibaba / Pivotal Software Inc. / PostgreSQL Global Development Group	Google	Rocket Software, originally Martin Phillips	SADAS s.r.l.
Initial release	2016	2014	1993	2006
Current release		2.1.12, February 2017	3.4-12	8.0
License Commercial or Open Source	commercial	Open Source Apache 2.0	Open Source GPLv2, extended commercial license available	commercial free trial version available
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		JavaScript		C++
Server operating systems	hosted	server-less, requires a JavaScript environment (browser, Node.js) tested with Chrome, Firefox, IE, Safari	AIX FreeBSD Linux macOS Raspberry Pi Solaris Windows	AIX Linux Windows
Data scheme	yes	yes	yes with some exceptions	yes
Typing predefined data types such as float or date	yes	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	yes	no
Secondary indexes	yes	yes	yes	yes
SQL Support of SQL	yes	SQL-like query language via JavaScript builder pattern	no	yes
APIs and other access methods	JDBC ODBC			JDBC ODBC Proprietary protocol
Supported programming languages	C Java Perl Python R	JavaScript	.Net Basic C Java Objective C PHP Python	.Net C C# C++ Groovy Java PHP Python
Server-side scripts Stored procedures	yes	no	yes	no
Triggers	yes	Using read-only observers	yes	no
Partitioning methods Methods for storing different data on different nodes	Sharding Implicit feature of the cloud service	none	yes	horizontal partitioning
Replication methods Methods for redundantly storing data on multiple nodes	yes Implicit feature of the cloud service	none	yes	none
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	yes	no	yes
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	ACID	ACID	ACID
Concurrency Support for concurrent manipulation of data	yes	yes	yes	yes
Durability Support for making data persistent	yes	yes, by using IndexedDB or the cloud service Firebase Realtime Database	yes	yes
In-memory capabilities Is there an option to define some or all structures to be held in-memory only.	no	yes using MemoryDB		yes managed by 'Learn by Usage'
User concepts Access control	fine grained access rights according to SQL-standard	no	Access rights can be defined down to the item level	Access rights for users, groups and roles according to SQL-standard
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More resources
	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB	Lovefield	OpenQM also called QM	Sadas Engine
Recent citations in the news	Alibaba Cloud upgrades AnalyticDB with vector database engine 25 July 2023, CloudTech 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 ignites AI innovation in Singapore with recent hackathon | KrASIA 27 March 2024, KrASIA provided by Google News

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