DBMS > Alibaba Cloud AnalyticDB for PostgreSQL vs. Alibaba Cloud TSDB vs. EJDB vs. PostGIS

System Properties Comparison Alibaba Cloud AnalyticDB for PostgreSQL vs. Alibaba Cloud TSDB vs. EJDB vs. PostGIS

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Editorial information provided by DB-Engines
Name	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB  Xexclude from comparison	Alibaba Cloud TSDB  Xexclude from comparison	EJDB  Xexclude from comparison	PostGIS  Xexclude from comparison
Description	An online MPP (Massively Parallel Processing) data warehousing service based on Greenplum	A stable, reliable, and cost-effective online high-performance time series database service	Embeddable document-store database library with JSON representation of queries (in MongoDB style)	Spatial extension of PostgreSQL
Primary database model	Relational DBMS	Time Series DBMS	Document store	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 0.29 Rank #301   Overall #26   Time Series DBMS	Score 0.31 Rank #296   Overall #44   Document stores	Score 21.72 Rank #29   Overall #1   Spatial DBMS
Website	www.alibabacloud.com/­product/­hybriddb-postgresql	www.alibabacloud.com/­product/­hitsdb	github.com/­Softmotions/­ejdb	postgis.net
Technical documentation	www.alibabacloud.com/­help/­en/­analyticdb-for-postgresql/­latest/­product-introduction-overview	www.alibabacloud.com/­help/­en/­time-series-database/­latest/­what-is-tsdb	github.com/­Softmotions/­ejdb/­blob/­master/­README.md	postgis.net/­documentation
Developer	Alibaba / Pivotal Software Inc. / PostgreSQL Global Development Group	Alibaba	Softmotions
Initial release	2016		2012	2005
Current release				3.4.2, February 2024
License Commercial or Open Source	commercial	commercial	Open Source GPLv2	Open Source GPL v2.0
Cloud-based only Only available as a cloud service	yes	yes	no	no
DBaaS offerings (sponsored links) Database as a Service Providers of DBaaS offerings, please contact us to be listed.
Implementation language			C	C
Server operating systems	hosted	hosted	server-less
Data scheme	yes	schema-free	schema-free	yes
Typing predefined data types such as float or date	yes	Numeric data and Strings	yes string, integer, double, bool, date, object_id	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
Secondary indexes	yes	no	no	yes
SQL Support of SQL	yes	no	no	yes
APIs and other access methods	JDBC ODBC	HTTP REST	in-process shared library
Supported programming languages	C Java Perl Python R	Java	Actionscript C C# C++ Go Java JavaScript (Node.js) Lua Objective-C Pike Python Ruby
Server-side scripts Stored procedures	yes	no	no	user defined functions
Triggers	yes	no	no	yes
Partitioning methods Methods for storing different data on different nodes	Sharding Implicit feature of the cloud service		none	yes based on PostgreSQL
Replication methods Methods for redundantly storing data on multiple nodes	yes Implicit feature of the cloud service		none	yes based on PostgreSQL
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 typically not needed, however similar functionality with collection joins possible	yes
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	ACID	no	no	ACID
Concurrency Support for concurrent manipulation of data	yes	yes	yes Read/Write Locking	yes
Durability Support for making data persistent	yes	yes	yes	yes
In-memory capabilities Is there an option to define some or all structures to be held in-memory only.	no	no		no
User concepts Access control	fine grained access rights according to SQL-standard	Access managed on TSDB instance level	no	yes based on PostgreSQL
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More resources
	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB	Alibaba Cloud TSDB	EJDB	PostGIS
DB-Engines blog posts				Spatial database management systems 6 April 2021, Matthias Gelbmann show all
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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