DBMS > Alibaba Cloud AnalyticDB for PostgreSQL vs. BigObject vs. EJDB vs. SpaceTime vs. Transwarp StellarDB

System Properties Comparison Alibaba Cloud AnalyticDB for PostgreSQL vs. BigObject vs. EJDB vs. SpaceTime vs. Transwarp StellarDB

Editorial information provided by DB-Engines
Name	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB  Xexclude from comparison	BigObject  Xexclude from comparison	EJDB  Xexclude from comparison	SpaceTime  Xexclude from comparison	Transwarp StellarDB  Xexclude from comparison
Description	An online MPP (Massively Parallel Processing) data warehousing service based on Greenplum	Analytic DBMS for real-time computations and queries	Embeddable document-store database library with JSON representation of queries (in MongoDB style)	SpaceTime is a spatio-temporal DBMS with a focus on performance.	A distributed graph DBMS built for enterprise-level graph applications
Primary database model	Relational DBMS	Relational DBMS a hierachical model (tree) can be imposed	Document store	Spatial DBMS	Graph 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 0.19 Rank #329   Overall #146   Relational DBMS	Score 0.31 Rank #296   Overall #44   Document stores	Score 0.03 Rank #392   Overall #8   Spatial DBMS	Score 0.07 Rank #371   Overall #39   Graph DBMS
Website	www.alibabacloud.com/­product/­hybriddb-postgresql	bigobject.io	github.com/­Softmotions/­ejdb	www.mireo.com/­spacetime	www.transwarp.cn/­en/­product/­stellardb
Technical documentation	www.alibabacloud.com/­help/­en/­analyticdb-for-postgresql/­latest/­product-introduction-overview	docs.bigobject.io	github.com/­Softmotions/­ejdb/­blob/­master/­README.md
Developer	Alibaba / Pivotal Software Inc. / PostgreSQL Global Development Group	BigObject, Inc.	Softmotions	Mireo	Transwarp
Initial release	2016	2015	2012	2020
License Commercial or Open Source	commercial	commercial free community edition available	Open Source GPLv2	commercial	commercial
Cloud-based only Only available as a cloud service	yes	no	no	no	no
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Implementation language			C	C++
Server operating systems	hosted	Linux distributed as a docker-image OS X distributed as a docker-image (boot2docker) Windows distributed as a docker-image (boot2docker)	server-less	Linux
Data scheme	yes	yes	schema-free	yes
Typing predefined data types such as float or date	yes	yes	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		no
Secondary indexes	yes	yes	no	no
SQL Support of SQL	yes	SQL-like DML and DDL statements	no	A subset of ANSI SQL is implemented	SQL-like query language
APIs and other access methods	JDBC ODBC	fluentd ODBC RESTful HTTP API	in-process shared library	RESTful HTTP API	OpenCypher
Supported programming languages	C Java Perl Python R		Actionscript C C# C++ Go Java JavaScript (Node.js) Lua Objective-C Pike Python Ruby	C# C++ Python
Server-side scripts Stored procedures	yes	Lua	no	no
Triggers	yes	no	no	no
Partitioning methods Methods for storing different data on different nodes	Sharding Implicit feature of the cloud service	none	none	Fixed-grid hypercubes	horizontal partitioning
Replication methods Methods for redundantly storing data on multiple nodes	yes Implicit feature of the cloud service	none	none	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	none		Immediate Consistency
Foreign keys Referential integrity	yes	yes automatically between fact table and dimension tables	no typically not needed, however similar functionality with collection joins possible	no
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	ACID	no	no	no
Concurrency Support for concurrent manipulation of data	yes	yes Read/write lock on objects (tables, trees)	yes Read/Write Locking	yes	yes
Durability Support for making data persistent	yes	yes	yes	yes	yes
In-memory capabilities Is there an option to define some or all structures to be held in-memory only.	no	yes		no
User concepts Access control	fine grained access rights according to SQL-standard	no	no	yes	yes
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More resources
	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB	BigObject	EJDB	SpaceTime	Transwarp StellarDB
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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