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DBMS > Alibaba Cloud AnalyticDB for PostgreSQL vs. DataFS vs. Dragonfly vs. EJDB vs. Elasticsearch

System Properties Comparison Alibaba Cloud AnalyticDB for PostgreSQL vs. DataFS vs. Dragonfly vs. EJDB vs. Elasticsearch

Editorial information provided by DB-Engines
NameAlibaba Cloud AnalyticDB for PostgreSQL infoformer name was HybridDB  Xexclude from comparisonDataFS  Xexclude from comparisonDragonfly  Xexclude from comparisonEJDB  Xexclude from comparisonElasticsearch  Xexclude from comparison
DescriptionAn online MPP (Massively Parallel Processing) data warehousing service based on GreenplumAll data is stored inside objects which are linked by so-called link attributes. Objects consist of classes which can be extended and de-extended at runtime. Graphs can be defined with a struct.A drop-in Redis replacement that scales vertically to support millions of operations per second and terabyte sized workloads, all on a single instanceEmbeddable document-store database library with JSON representation of queries (in MongoDB style)A distributed, RESTful modern search and analytics engine based on Apache Lucene infoElasticsearch lets you perform and combine many types of searches such as structured, unstructured, geo, and metric
Primary database modelRelational DBMSObject oriented DBMSKey-value storeDocument storeSearch engine
Secondary database modelsGraph DBMSDocument store
Spatial DBMS
Vector DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.76
Rank#220  Overall
#102  Relational DBMS
Score0.09
Rank#360  Overall
#17  Object oriented DBMS
Score0.49
Rank#261  Overall
#38  Key-value stores
Score0.31
Rank#296  Overall
#44  Document stores
Score132.83
Rank#7  Overall
#1  Search engines
Websitewww.alibabacloud.com/­product/­hybriddb-postgresqlnewdatabase.comgithub.com/­dragonflydb/­dragonfly
www.dragonflydb.io
github.com/­Softmotions/­ejdbwww.elastic.co/­elasticsearch
Technical documentationwww.alibabacloud.com/­help/­en/­analyticdb-for-postgresql/­latest/­product-introduction-overviewdev.mobiland.com/­Overview.xspwww.dragonflydb.io/­docsgithub.com/­Softmotions/­ejdb/­blob/­master/­README.mdwww.elastic.co/­guide/­en/­elasticsearch/­reference/­current/­index.html
DeveloperAlibaba / Pivotal Software Inc. / PostgreSQL Global Development GroupMobiland AGDragonflyDB team and community contributorsSoftmotionsElastic
Initial release20162018202320122010
Current release1.1.263, October 20221.0, March 20238.6, January 2023
License infoCommercial or Open SourcecommercialcommercialOpen Source infoBSL 1.1Open Source infoGPLv2Open Source infoElastic License
Cloud-based only infoOnly available as a cloud serviceyesnononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageC++CJava
Server operating systemshostedWindowsLinuxserver-lessAll OS with a Java VM
Data schemeyesClasses, Structs, and Lists are written in proprietary DataTypeDefinitionLanguage (.dtdl) and Objects consisting of those are written in proprietary DataAccessDefinitionLanguage (.dadl)scheme-freeschema-freeschema-free infoFlexible type definitions. Once a type is defined, it is persistent
Typing infopredefined data types such as float or dateyesyesstrings, hashes, lists, sets, sorted sets, bit arraysyes infostring, integer, double, bool, date, object_idyes
XML support infoSome form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.yesnonono
Secondary indexesyesnononoyes infoAll search fields are automatically indexed
SQL infoSupport of SQLyesnononoSQL-like query language
APIs and other access methodsJDBC
ODBC
.NET Client API
Proprietary client DLL
WinRT client
Proprietary protocol infoRESP - REdis Serialization Protocolin-process shared libraryJava API
RESTful HTTP/JSON API
Supported programming languagesC
Java
Perl
Python
R
.Net
C
C#
C++
VB.Net
C
C#
C++
Clojure
D
Dart
Elixir
Erlang
Go
Haskell
Java
JavaScript (Node.js)
Lisp
Lua
Objective-C
Perl
PHP
Python
R
Ruby
Rust
Scala
Swift
Tcl
Actionscript
C
C#
C++
Go
Java
JavaScript (Node.js)
Lua
Objective-C
Pike
Python
Ruby
.Net
Groovy
Community Contributed Clients
Java
JavaScript
Perl
PHP
Python
Ruby
Server-side scripts infoStored proceduresyesLuanoyes
Triggersyesno, except callback-events from server when changes happenedpublish/subscribe channels provide some trigger functionalitynoyes infoby using the 'percolation' feature
Partitioning methods infoMethods for storing different data on different nodesSharding infoImplicit feature of the cloud serviceProprietary Sharding systemnoneSharding
Replication methods infoMethods for redundantly storing data on multiple nodesyes infoImplicit feature of the cloud serviceSource-replica replicationnoneyes
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonononoES-Hadoop Connector
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyEventual ConsistencyEventual Consistency infoSynchronous doc based replication. Get by ID may show delays up to 1 sec. Configurable write consistency: one, quorum, all
Foreign keys infoReferential integrityyesyesnono infotypically not needed, however similar functionality with collection joins possibleno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACIDAtomic execution of command blocks and scriptsnono
Concurrency infoSupport for concurrent manipulation of datayesyesyes, strict serializability by the serveryes infoRead/Write Lockingyes
Durability infoSupport for making data persistentyesyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.nonoyesMemcached and Redis integration
User concepts infoAccess controlfine grained access rights according to SQL-standardWindows-ProfilePassword-based authenticationno

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More resources
Alibaba Cloud AnalyticDB for PostgreSQL infoformer name was HybridDBDataFSDragonflyEJDBElasticsearch
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