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DBMS > chDB vs. DataFS vs. Greenplum

System Properties Comparison chDB vs. DataFS vs. Greenplum

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Editorial information provided by DB-Engines
NamechDB  Xexclude from comparisonDataFS  Xexclude from comparisonGreenplum  Xexclude from comparison
DescriptionAn embedded SQL OLAP Engine powered by ClickHouseAll 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.Analytic Database platform built on PostgreSQL. Full name is Pivotal Greenplum Database infoA logical database in Greenplum is an array of individual PostgreSQL databases working together to present a single database image.
Primary database modelRelational DBMSObject oriented DBMSRelational DBMS
Secondary database modelsTime Series DBMSGraph DBMSDocument store
Spatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.00
Rank#383  Overall
#158  Relational DBMS
Score0.06
Rank#354  Overall
#15  Object oriented DBMS
Score8.37
Rank#48  Overall
#30  Relational DBMS
Websitegithub.com/­chdb-io/­chdbnewdatabase.comgreenplum.org
Technical documentationdoc.chdb.iodev.mobiland.com/­Overview.xspdocs.greenplum.org
DeveloperMobiland AGPivotal Software Inc.
Initial release202320182005
Current release1.1.263, October 20227.0.0, September 2023
License infoCommercial or Open SourceOpen Source infoApache Version 2.0commercialOpen Source infoApache 2.0
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Server operating systemsserver-lessWindowsLinux
Data schemeClasses, Structs, and Lists are written in proprietary DataTypeDefinitionLanguage (.dtdl) and Objects consisting of those are written in proprietary DataAccessDefinitionLanguage (.dadl)yes
Typing infopredefined data types such as float or dateyesyes
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.noyes infosince Version 4.2
Secondary indexesnoyes
SQL infoSupport of SQLClose to ANSI SQL (SQL/JSON + extensions)noyes
APIs and other access methods.NET Client API
Proprietary client DLL
WinRT client
JDBC
ODBC
Supported programming languagesBun
C
C++
Go
JavaScript (Node.js)
Python
Rust
.Net
C
C#
C++
VB.Net
C
Java
Perl
Python
R
Server-side scripts infoStored proceduresyes
Triggersno, except callback-events from server when changes happenedyes
Partitioning methods infoMethods for storing different data on different nodesProprietary Sharding systemSharding
Replication methods infoMethods for redundantly storing data on multiple nodesSource-replica replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyes
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyesyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyes
Durability infoSupport for making data persistentyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.nono
User concepts infoAccess controlWindows-Profilefine grained access rights according to SQL-standard

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More resources
chDBDataFSGreenplum
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