DBMS > Alibaba Cloud AnalyticDB for PostgreSQL vs. Cachelot.io vs. chDB vs. Drizzle

System Properties Comparison Alibaba Cloud AnalyticDB for PostgreSQL vs. Cachelot.io vs. chDB vs. Drizzle

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Editorial information provided by DB-Engines
Name	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB  Xexclude from comparison	Cachelot.io  Xexclude from comparison	chDB  Xexclude from comparison	Drizzle  Xexclude from comparison
				Drizzle has published its last release in September 2012. The open-source project is discontinued and Drizzle is excluded from the DB-Engines ranking.
Description	An online MPP (Massively Parallel Processing) data warehousing service based on Greenplum	In-memory caching system	An embedded SQL OLAP Engine powered by ClickHouse	MySQL fork with a pluggable micro-kernel and with an emphasis of performance over compatibility.
Primary database model	Relational DBMS	Key-value store	Relational DBMS	Relational DBMS
Secondary database models			Time Series DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 0.76 Rank #220   Overall #102   Relational DBMS	Score 0.04 Rank #388   Overall #62   Key-value stores	Score 0.07 Rank #376   Overall #158   Relational DBMS
Website	www.alibabacloud.com/­product/­hybriddb-postgresql	cachelot.io	github.com/­chdb-io/­chdb
Technical documentation	www.alibabacloud.com/­help/­en/­analyticdb-for-postgresql/­latest/­product-introduction-overview		doc.chdb.io
Developer	Alibaba / Pivotal Software Inc. / PostgreSQL Global Development Group			Drizzle project, originally started by Brian Aker
Initial release	2016	2015	2023	2008
Current release				7.2.4, September 2012
License Commercial or Open Source	commercial	Open Source Simplified BSD License	Open Source Apache Version 2.0	Open Source GNU GPL
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++
Server operating systems	hosted	FreeBSD Linux OS X	server-less	FreeBSD Linux OS X
Data scheme	yes	schema-free		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
Secondary indexes	yes	no		yes
SQL Support of SQL	yes	no	Close to ANSI SQL (SQL/JSON + extensions)	yes with proprietary extensions
APIs and other access methods	JDBC ODBC	Memcached protocol		JDBC
Supported programming languages	C Java Perl Python R	.Net C C++ ColdFusion Erlang Java Lisp Lua OCaml OCaml Perl PHP Python Ruby	Bun C C++ Go JavaScript (Node.js) Python Rust	C C++ Java PHP
Server-side scripts Stored procedures	yes	no		no
Triggers	yes	no		no hooks for callbacks inside the server can be used.
Partitioning methods Methods for storing different data on different nodes	Sharding Implicit feature of the cloud service	none		Sharding
Replication methods Methods for redundantly storing data on multiple nodes	yes Implicit feature of the cloud service	none		Multi-source replication Source-replica replication
MapReduce Offers an API for user-defined Map/Reduce methods	no	no		no
Consistency concepts Methods to ensure consistency in a distributed system	Immediate Consistency	none
Foreign keys Referential integrity	yes	no		yes
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	ACID	no		ACID
Concurrency Support for concurrent manipulation of data	yes	yes		yes
Durability Support for making data persistent	yes	no		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	no		Pluggable authentication mechanisms e.g. LDAP, HTTP
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More resources
	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB	Cachelot.io	chDB	Drizzle
DB-Engines blog posts				MySQL won the April ranking; did its forks follow? 1 April 2015, Paul Andlinger Has MySQL finally lost its mojo? 1 July 2013, Matthias Gelbmann show all
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 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, securityaffairs.com provided by Google News

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