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DBMS > CrateDB vs. Kingbase vs. Postgres-XL

System Properties Comparison CrateDB vs. Kingbase vs. Postgres-XL

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Editorial information provided by DB-Engines
NameCrateDB  Xexclude from comparisonKingbase  Xexclude from comparisonPostgres-XL  Xexclude from comparison
DescriptionDistributed Date Store based on LuceneAn enterprise-class RDBMS compatible with PostgreSQL and Oracle and widely used in China.Based on PostgreSQL enhanced with MPP and write-scale-out cluster features
Primary database modelRelational DBMS
Search engine
Relational DBMSRelational DBMS
Secondary database modelsDocument store
Time Series DBMS
Document store
Spatial DBMS
Document store
Spatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.95
Rank#180  Overall
#87  Relational DBMS
#13  Search engines
Score0.36
Rank#265  Overall
#123  Relational DBMS
Score0.67
Rank#211  Overall
#101  Relational DBMS
Websitecrate.iowww.kingbase.com.cnwww.postgres-xl.org
Technical documentationcrate.io/­docsbbs.kingbase.com.cn/­chess_wenku-index.htmlwww.postgres-xl.org/­documentation
DeveloperCrateBeiJing KINGBASE Information technologies inc.
Initial release201319992014 infosince 2012, originally named StormDB
Current releaseV8.0, August 202110 R1, October 2018
License infoCommercial or Open SourceOpen SourcecommercialOpen Source infoMozilla public license
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageJavaC and JavaC
Server operating systemsAll OS with a Java 7 (and higher) VMLinux
Windows
Linux
macOS
Data schemeFlexible Schema (defined schema, partial schema, schema free)yesyes
Typing infopredefined data types such as float or dateyesyesyes
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.noyesyes infoXML type, but no XML query functionality
Secondary indexesyesyesyes
SQL infoSupport of SQLyes, but no triggers and constraintsStandard with numerous extensionsyes infodistributed, parallel query execution
APIs and other access methodsADO.NET infocommunity maintained client
JDBC
MQTT (Message Queue Telemetry Transport)
PostgreSQL wire protocol
Prometheus Remote Read/Write
RESTful HTTP API
ADO.NET
gokb
JDBC
kdbndp
ODBC
PDI
PDO
Pro*C
psycopg2
QT
ADO.NET
JDBC
native C library
ODBC
streaming API for large objects
Supported programming languagesErlang
Go infocommunity maintained client
Java
JavaScript (Node.js) infocommunity maintained client
Perl infocommunity maintained client
PHP
Python
Ruby infocommunity maintained client
Scala infocommunity maintained client
.Net
C
C++
Go
Java
JavaScript (Node.js)
Perl
PHP
Python
.Net
C
C++
Delphi
Erlang
Java
JavaScript (Node.js)
Perl
PHP
Python
Tcl
Server-side scripts infoStored proceduresuser defined functionsuser defined functionsuser defined functions
Triggersnoyesyes
Partitioning methods infoMethods for storing different data on different nodesShardinghorizontal partitioning (by range, list and hash) and vertical partitioninghorizontal partitioning
Replication methods infoMethods for redundantly storing data on multiple nodesselectable replication factoryes
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency
Read Your Own Writes Consistency infofor primary key lookups
Immediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynoyesyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datano infounique row identifiers can be used for implementing an optimistic concurrency control strategyACIDACID infoMVCC
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.nono
User concepts infoAccess controlrights management via user accountsfine grained access rights according to SQL-standardfine grained access rights according to SQL-standard
More information provided by the system vendor
CrateDBKingbasePostgres-XL
Specific characteristicsCrateDB is an open source distributed SQL database that spreads data and processing...
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An enterprise-class RDBMS compatible with PostgreSQL and Oracle. It has the following...
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Competitive advantagesCrateDB is typically used in operational analytics applications, particularly those...
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Complete database management platform with Integrated Development Environment Tool,...
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Typical application scenariosCrateDB is ideal for integrating and analyzing streams of data--often machine-generated--in...
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New applications for transactional and mixed workloads that need to integrate with...
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Key customersCrateDB customers include McAfee, Qualtrics , Nokia, NBC Golfnow , Digital Domain...
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The main customers are: China National Petroleum Corporation China Petrochemical...
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Market metricsThe CrateDB open source project was started in 2014. CrateDB was the winner of TechCrunch...
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At present, the main market is in China, but expansion to the international market...
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Licensing and pricing modelsCrateDB pricing CrateDB Community Edition is open source and free to use under the...
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Business license. Various sales modes: for example, sales by set, sales by CPU quantity,...
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More resources
CrateDBKingbasePostgres-XL
Recent citations in the news

Crate.io Provides New Tier Model for CrateDB Cloud
5 July 2022, Database Trends and Applications

CrateDB 4.5 takes distributed SQL database open source
24 March 2021, TechTarget

Crate.io extends database service offering to Google Cloud
13 April 2022, VentureBeat

Exec Q&A with Crate.io CEO Eva Schönleitner
31 May 2022, Technology Magazine

Crate.io raises $10M to grow its database platform
15 June 2021, VentureBeat

provided by Google News

Building a scalable PostgreSQL solution
14 April 2019, Packt Hub

provided by Google News

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