DBMS > Alibaba Cloud AnalyticDB for PostgreSQL vs. Postgres-XL vs. Trafodion vs. Yaacomo

System Properties Comparison Alibaba Cloud AnalyticDB for PostgreSQL vs. Postgres-XL vs. Trafodion vs. Yaacomo

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Name	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB  Xexclude from comparison	Postgres-XL  Xexclude from comparison	Trafodion  Xexclude from comparison	Yaacomo  Xexclude from comparison
			Apache Trafodion has been retired in 2021. Therefore it is excluded from the DB-Engines Ranking.	Yaacomo seems to be discontinued and is removed from the DB-Engines ranking
Description	An online MPP (Massively Parallel Processing) data warehousing service based on Greenplum	Based on PostgreSQL enhanced with MPP and write-scale-out cluster features	Transactional SQL-on-Hadoop DBMS	OpenCL based in-memory RDBMS, designed for efficiently utilizing the hardware via parallel computing
Primary database model	Relational DBMS	Relational DBMS	Relational DBMS	Relational 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 0.53 Rank #254   Overall #117   Relational DBMS
Website	www.alibabacloud.com/­product/­hybriddb-postgresql	www.postgres-xl.org	trafodion.apache.org	yaacomo.com
Technical documentation	www.alibabacloud.com/­help/­en/­analyticdb-for-postgresql/­latest/­product-introduction-overview	www.postgres-xl.org/­documentation	trafodion.apache.org/­documentation.html
Developer	Alibaba / Pivotal Software Inc. / PostgreSQL Global Development Group		Apache Software Foundation, originally developed by HP	Q2WEB GmbH
Initial release	2016	2014 since 2012, originally named StormDB	2014	2009
Current release		10 R1, October 2018	2.3.0, February 2019
License Commercial or Open Source	commercial	Open Source Mozilla public license	Open Source Apache 2.0	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++, Java
Server operating systems	hosted	Linux macOS	Linux	Android Linux Windows
Data scheme	yes	yes	yes	yes
Typing predefined data types such as float or date	yes	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	yes XML type, but no XML query functionality	no	no
Secondary indexes	yes	yes	yes	yes
SQL Support of SQL	yes	yes distributed, parallel query execution	yes	yes
APIs and other access methods	JDBC ODBC	ADO.NET JDBC native C library ODBC streaming API for large objects	ADO.NET JDBC ODBC	JDBC ODBC
Supported programming languages	C Java Perl Python R	.Net C C++ Delphi Erlang Java JavaScript (Node.js) Perl PHP Python Tcl	All languages supporting JDBC/ODBC/ADO.Net
Server-side scripts Stored procedures	yes	user defined functions	Java Stored Procedures
Triggers	yes	yes	no	yes
Partitioning methods Methods for storing different data on different nodes	Sharding Implicit feature of the cloud service	horizontal partitioning	Sharding	horizontal partitioning
Replication methods Methods for redundantly storing data on multiple nodes	yes Implicit feature of the cloud service		yes, via HBase	Source-replica replication
MapReduce Offers an API for user-defined Map/Reduce methods	no	no	yes via user defined functions and HBase	no
Consistency concepts Methods to ensure consistency in a distributed system	Immediate Consistency	Immediate Consistency	Immediate Consistency	Immediate Consistency
Foreign keys Referential integrity	yes	yes	yes	yes
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	ACID	ACID MVCC	ACID	ACID
Concurrency Support for concurrent manipulation of data	yes	yes	yes	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	yes
User concepts Access control	fine grained access rights according to SQL-standard	fine grained access rights according to SQL-standard	fine grained access rights according to SQL-standard	fine grained access rights according to SQL-standard
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More resources
	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB	Postgres-XL	Trafodion	Yaacomo
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 Two critical vulnerabilities spotted in Alibaba Cloud's PostgreSQL databases 21 April 2023, TEISS Experts disclosed two critical flaws in Alibaba cloud database services 20 April 2023, Security Affairs Alibaba Cloud to spur AI innovation with upcoming Singapore hackathon in March | KrASIA 21 February 2024, KrASIA provided by Google News		SQL-on-Hadoop Database Trafodion Bridges Transactions and Analysis 24 January 2018, The New Stack Evaluating HTAP Databases for Machine Learning Applications 2 November 2016, KDnuggets Low-latency, distributed database architectures are critical for emerging fog applications 16 July 2022, Embedded Computing Design provided by Google News

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