DBMS > Alibaba Cloud AnalyticDB for PostgreSQL vs. JSqlDb vs. OpenQM vs. SpaceTime

System Properties Comparison Alibaba Cloud AnalyticDB for PostgreSQL vs. JSqlDb vs. OpenQM vs. SpaceTime

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Name	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB  Xexclude from comparison	JSqlDb  Xexclude from comparison	OpenQM also called QM  Xexclude from comparison	SpaceTime  Xexclude from comparison
		JSqlDB 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	JavaScript Query Language Database, stores JavaScript objects and primitives	QpenQM is a high-performance, self-tuning, multi-value DBMS	SpaceTime is a spatio-temporal DBMS with a focus on performance.
Primary database model	Relational DBMS	Document store Object oriented DBMS	Multivalue DBMS	Spatial DBMS
Secondary database models				Relational DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 0.76 Rank #220   Overall #102   Relational DBMS		Score 0.34 Rank #284   Overall #10   Multivalue DBMS	Score 0.03 Rank #392   Overall #8   Spatial DBMS
Website	www.alibabacloud.com/­product/­hybriddb-postgresql	jsqldb.org (offline)	www.rocketsoftware.com/­products/­rocket-multivalue-application-development-platform/­rocket-open-qm	www.mireo.com/­spacetime
Technical documentation	www.alibabacloud.com/­help/­en/­analyticdb-for-postgresql/­latest/­product-introduction-overview
Developer	Alibaba / Pivotal Software Inc. / PostgreSQL Global Development Group	Konrad von Backstrom	Rocket Software, originally Martin Phillips	Mireo
Initial release	2016	2018	1993	2020
Current release		0.8, December 2018	3.4-12
License Commercial or Open Source	commercial	Open Source	Open Source GPLv2, extended commercial license available	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++
Server operating systems	hosted	Linux macOS Windows	AIX FreeBSD Linux macOS Raspberry Pi Solaris Windows	Linux
Data scheme	yes	schema-free	yes with some exceptions	yes
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	no	yes	no
Secondary indexes	yes	no	yes	no
SQL Support of SQL	yes	no	no	A subset of ANSI SQL is implemented
APIs and other access methods	JDBC ODBC			RESTful HTTP API
Supported programming languages	C Java Perl Python R	JavaScript	.Net Basic C Java Objective C PHP Python	C# C++ Python
Server-side scripts Stored procedures	yes	functions in JavaScript	yes	no
Triggers	yes	no	yes	no
Partitioning methods Methods for storing different data on different nodes	Sharding Implicit feature of the cloud service	none	yes	Fixed-grid hypercubes
Replication methods Methods for redundantly storing data on multiple nodes	yes Implicit feature of the cloud service	none	yes	Real-time block device replication (DRBD)
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	no	no	no
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	ACID		ACID	no
Concurrency Support for concurrent manipulation of data	yes		yes	yes
Durability Support for making data persistent	yes	yes using RocksDB	yes	yes
In-memory capabilities Is there an option to define some or all structures to be held in-memory only.	no			no
User concepts Access control	fine grained access rights according to SQL-standard		Access rights can be defined down to the item level	yes
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More resources
	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB	JSqlDb	OpenQM also called QM	SpaceTime
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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