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DBMS > LeanXcale vs. MaxDB vs. NebulaGraph vs. OpenSearch vs. Postgres-XL

System Properties Comparison LeanXcale vs. MaxDB vs. NebulaGraph vs. OpenSearch vs. Postgres-XL

Editorial information provided by DB-Engines
NameLeanXcale  Xexclude from comparisonMaxDB infoformerly named Adabas-D  Xexclude from comparisonNebulaGraph  Xexclude from comparisonOpenSearch  Xexclude from comparisonPostgres-XL  Xexclude from comparison
DescriptionA highly scalable full ACID SQL database with fast NoSQL data ingestion and GIS capabilitiesA robust and reliable RDBMS optimized to run all major SAP solutionsA distributed, linear scalable, high perfomant Graph DBMSA distributed, RESTful search and analytics engine forked from Elasticsearch and based on Apache LuceneBased on PostgreSQL enhanced with MPP and write-scale-out cluster features
Primary database modelKey-value store
Relational DBMS
Relational DBMSGraph DBMSSearch engineRelational DBMS
Secondary database modelsVector DBMSDocument store
Spatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.29
Rank#291  Overall
#41  Key-value stores
#132  Relational DBMS
Score2.32
Rank#112  Overall
#55  Relational DBMS
Score2.14
Rank#120  Overall
#10  Graph DBMS
Score16.36
Rank#37  Overall
#4  Search engines
Score0.49
Rank#256  Overall
#117  Relational DBMS
Websitewww.leanxcale.commaxdb.sap.comgithub.com/­vesoft-inc/­nebula
www.nebula-graph.io
github.com/­opensearch-project
opensearch.org
www.postgres-xl.org
Technical documentationmaxdb.sap.com/­documentationdocs.nebula-graph.ioopensearch.org/­docs/­latestwww.postgres-xl.org/­documentation
DeveloperLeanXcaleSAP, acquired from Software AG (Adabas-D) in 1997Vesoft Inc.Amazon Web Services
Initial release20151984201920212014 infosince 2012, originally named StormDB
Current release7.9.10.12, February 20242.5.0, January 202310 R1, October 2018
License infoCommercial or Open Sourcecommercialcommercial infoLimited community edition freeOpen Source infoApache Version 2.0 + Common Clause 1.0Open Source infoApache Version 2.0Open Source infoMozilla public license
Cloud-based only infoOnly available as a cloud servicenonononono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
  • STACKIT OpenSearch offers OpenSearch in a managed version in enterprise grade, 100% GDPR-compliant, for a wide range of applications like analytics, website search, offering scalability and fast data access.
  • Aiven for OpenSearch: Fully managed open source search and analytics suite. Out-of-the-box integrations get you up and running in a couple of clicks.
Implementation languageC++C++JavaC
Server operating systemsAIX
HP-UX
Linux
Solaris
Windows
LinuxAll OS with a Java VMLinux
macOS
Data schemeyesyesStrong typed schemaschema-free infoFlexible type definitions. Once a type is defined, it is persistentyes
Typing infopredefined data types such as float or dateyesyesyesyes
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.nonoyes infoXML type, but no XML query functionality
Secondary indexesyesyes infoNebula Graph internally uses the Key-Value store RocksDB for persistency. The vertices, edges, and their properties are stored as Key while their values are stored as Value. The primary indexes are per Key and secondary indexes are per Value.yes infoAll search fields are automatically indexedyes
SQL infoSupport of SQLyes infothrough Apache DerbyyesSQL-like query languageSQL-like query languageyes infodistributed, parallel query execution
APIs and other access methodsJDBC
Kafka Connector
ODBC
proprietary key/value interface
Spark Connector
ADO.NET
JDBC
ODBC
WebDAV
Browser interface
console (shell)
Cypher Query Language
GO Object Graph Mapper
Java Object Graph Mapper
NGBatis infoORM framework for NebulaGraph and Spring-Boot
Proprietary native API
Python Object Graph Mapper
Query language nGQL
Java API
RESTful HTTP/JSON API
ADO.NET
JDBC
native C library
ODBC
streaming API for large objects
Supported programming languagesC
Java
Scala
.Net
C#
Java
Perl
PHP
Python
.Net
C++
Go
Java
PHP
Python
Go
Java
JavaScript (Node.js)
PHP
Python
Ruby infoElasticsearch client
.Net
C
C++
Delphi
Erlang
Java
JavaScript (Node.js)
Perl
PHP
Python
Tcl
Server-side scripts infoStored proceduresyesuser defined functionsyesuser defined functions
Triggersyesyes infoby using the 'percolation' featureyes
Partitioning methods infoMethods for storing different data on different nodesnoneShardingShardinghorizontal partitioning
Replication methods infoMethods for redundantly storing data on multiple nodesSource-replica replicationCausal Clustering using Raft protocolyes
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate ConsistencyEventual Consistency infoSynchronous doc based replication. Get by ID may show delays up to 1 sec. Configurable write consistency: one, quorum, allImmediate Consistency
Foreign keys infoReferential integrityyesyesyes infoRelationships in graphsnoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACIDACIDnoACID infoMVCC
Concurrency infoSupport for concurrent manipulation of datayesyesyesyesyes
Durability infoSupport for making data persistentyesyesyes infousing RocksDByesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesnoyesno
User concepts infoAccess controlfine grained access rights according to SQL-standardRole-based access controlfine grained access rights according to SQL-standard
More information provided by the system vendor
LeanXcaleMaxDB infoformerly named Adabas-DNebulaGraphOpenSearchPostgres-XL
Specific characteristicsNebulaGraph is a truly distributed, linearly scalable, lightning-fast graph database,...
» more
OpenSearch is a highly scalable and extensible open-source software suite for search,...
» more
Competitive advantagesNebulaGraph boasts the world's only graph database solution that is able to host...
» more
Distributed as fully open source under Apache License, Version 2.0 (ALv2), OpenSearch...
» more
Typical application scenariosSocial networking Fraud detection Knowledge graph Data warehouse management Anti...
» more
The OpenSearch platform is used across a broad range of search , analytics, and observability...
» more
Key customersCompanies from a variety of industries have implemented NebulaGraph Database in production,...
» more
Market metricsAt our very early stage, NebulaGraph has already received over 10,000 stars on GitHub...
» more
Licensing and pricing modelsNebulaGraph is open source and free to use under Apache 2.0 license.
» more
The OpenSearch Project offers open source software licensed under Apache License...
» more

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Related products and services
3rd partiesAiven for OpenSearch: Fully managed open source search and analytics suite. Out-of-the-box integrations get you up and running in a couple of clicks.
» more

We invite representatives of vendors of related products to contact us for presenting information about their offerings here.

More resources
LeanXcaleMaxDB infoformerly named Adabas-DNebulaGraphOpenSearchPostgres-XL
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